21115262

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 37160640

約数和(自身を除く): 16045378

約数列:

[1, 2, 7, 14, 101, 109, 137, 202, 218, 274, 707, 763, 959, 1414, 1526, 1918, 11009, 13837, 14933, 22018, 27674, 29866, 77063, 96859, 104531, 154126, 193718, 209062, 1508233, 3016466, 10557631, 21115262]

約数ペア:

[(1, 21115262), (2, 10557631), (7, 3016466), (14, 1508233), (101, 209062), (109, 193718), (137, 154126), (202, 104531), (218, 96859), (274, 77063), (707, 29866), (763, 27674), (959, 22018), (1414, 14933), (1526, 13837), (1918, 11009)]