21125126

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 35849088

約数和(自身を除く): 14723962

約数列:

[1, 2, 11, 22, 43, 86, 137, 163, 274, 326, 473, 946, 1507, 1793, 3014, 3586, 5891, 7009, 11782, 14018, 22331, 44662, 64801, 77099, 129602, 154198, 245641, 491282, 960233, 1920466, 10562563, 21125126]

約数ペア:

[(1, 21125126), (2, 10562563), (11, 1920466), (22, 960233), (43, 491282), (86, 245641), (137, 154198), (163, 129602), (274, 77099), (326, 64801), (473, 44662), (946, 22331), (1507, 14018), (1793, 11782), (3014, 7009), (3586, 5891)]