- a confident integer that's corresponding to the sum of its good integral facets, including 1 but excluding itself.
- A number that's the sum of all its divisors except it self.
- a number corresponding to the sum of the all its divisors; because, 28, whoever aliquot parts, or divisors, are 14, 7, 4, 2, 1. See numerous number, under plentiful.
Quotes for "perfect number"
- "Personally, I think four is the…"
Cross Reference for "perfect number"