# Erdős–Nicolas number

> In math, a number that is equal to the sum of some of its factors

**Wikidata**: [Q16334729](https://www.wikidata.org/wiki/Q16334729)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Erdős–Nicolas_number)  
**Source**: https://4ort.xyz/entity/erd-s-nicolas-number