Atom - Æṣ - Proper Divisor Sum

Characters: Æ ,

Tags: arithmetic , math , number , vectorize

Arity: monadic

This atom is monadic, which means it takes one argument.


Return the sum of z's proper divisors (divisors except for z itself).


This atom should work roughly the same way as or very similarly in concept to the following code snippets (some edge case exceptions may exist):