21019838

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2251}}^1$

素因数の和:2312

約数の個数: 32

約数和(自身を含む): 38914560

約数和(自身を除く): 17894722

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 161, 203, 322, 406, 667, 1334, 2251, 4502, 4669, 9338, 15757, 31514, 51773, 65279, 103546, 130558, 362411, 456953, 724822, 913906, 1501417, 3002834, 10509919, 21019838]

約数ペア:

[(1, 21019838), (2, 10509919), (7, 3002834), (14, 1501417), (23, 913906), (29, 724822), (46, 456953), (58, 362411), (161, 130558), (203, 103546), (322, 65279), (406, 51773), (667, 31514), (1334, 15757), (2251, 9338), (4502, 4669)]