完全数

Chinese
For pronunciation and definitions of 完全数 – see 完全數 (“perfect number”).
(This term, 完全数, is the simplified form of 完全數).
Notes:

Japanese
Kanji in this term
完 全 数
かん
Grade: 4		 ぜん
Grade: 3		 すう
Grade: 2
on’yomi
Alternative spelling
完全數 (kyūjitai)

Etymology

完全 +‎ 数

Noun

完(かん)全(ぜん)数(すう) • (kanzensū) 

  1. (number theory) perfect number, a positive integer that is equal to the sum of its positive divisors, excluding the number itself

See also
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