21119054

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15737}}^1$

素因数の和:15811

約数の個数: 16

約数和(自身を含む): 35127216

約数和(自身を除く): 14008162

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15737, 31474, 173107, 346214, 959957, 1919914, 10559527, 21119054]

約数ペア:

[(1, 21119054), (2, 10559527), (11, 1919914), (22, 959957), (61, 346214), (122, 173107), (671, 31474), (1342, 15737)]