to remark or

Neither is felicitous. What is it you want to say? 'The result is noteworthy' seems quite sufficient.

I think that the example sentence might have the same construction as found in 'The result is hard to understand', although your suggestion is very clear to me.
That is, I don't know whether there is an invisible for+agent(us,you,etc.) after noteworthy or not, which determines the form of remark; remark or being remarked.
What do you think about it?

cho7712I think that the example sentence might have the same construction as found in 'The result is hard to understand'

I don't think so, because (X) 'The result is hard' cannot stand alone.

oh, I mean 'The result is difficult to understand'. And then what's your thinking?

'The result is difficult' also cannot stand alone; hence, 'to understand' (or 'to find' or 'to explain') is needed. 'The result is noteworthy' is self-explanatory.

Is it the semantic feature of noteworthy that prevents it from being followed by the verb remark? Because of the redundancy or else??
And then how can it be explained that 'it is noteworthy to mention that...' comes to use?

cho7712Is it the semantic feature of noteworthy that prevents it from being followed by the verb remark?

Yes, it carries its own meaning.

cho7712And then how can it be explained that 'it is noteworthy to mention that...' comes to use?

That phrase has the same problem. Its writer is not a good one.