20880626

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:570

約数の個数: 24

約数和(自身を含む): 34213680

約数和(自身を除く): 13333054

約数列:

[1, 2, 13, 26, 163, 169, 326, 338, 379, 758, 2119, 4238, 4927, 9854, 27547, 55094, 61777, 64051, 123554, 128102, 803101, 1606202, 10440313, 20880626]

約数ペア:

[(1, 20880626), (2, 10440313), (13, 1606202), (26, 803101), (163, 128102), (169, 123554), (326, 64051), (338, 61777), (379, 55094), (758, 27547), (2119, 9854), (4238, 4927)]