# hyperperfect number

> natural number n for which the equality n=1+k(σ(n)−n−1) holds for some k

**Wikidata**: [Q839528](https://www.wikidata.org/wiki/Q839528)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hyperperfect_number)  
**Source**: https://4ort.xyz/entity/hyperperfect-number