21180268

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 38227392

約数和(自身を除く): 17047124

約数列:

[1, 2, 4, 47, 94, 113, 188, 226, 452, 997, 1994, 3988, 5311, 10622, 21244, 46859, 93718, 112661, 187436, 225322, 450644, 5295067, 10590134, 21180268]

約数ペア:

[(1, 21180268), (2, 10590134), (4, 5295067), (47, 450644), (94, 225322), (113, 187436), (188, 112661), (226, 93718), (452, 46859), (997, 21244), (1994, 10622), (3988, 5311)]