Numbers which can be written in precisely one way as sum of a subset of their proper divisors but are not Zumkeller numbers, i.e., have no subsets of their divisors such that the complement has the same sum.

A378519

Numbers which can be written in precisely one way as sum of a subset of their proper divisors but are not Zumkeller numbers, i.e., have no subsets of their divisors such that the complement has the same sum.