20915574

素因数分解:

$2^1\times 3^1\times {\mathrm{109}}^1\times {\mathrm{31981}}^1$

素因数の和:32095

約数の個数: 16

約数和(自身を含む): 42216240

約数和(自身を除く): 21300666

約数列:

[1, 2, 3, 6, 109, 218, 327, 654, 31981, 63962, 95943, 191886, 3485929, 6971858, 10457787, 20915574]

約数ペア:

[(1, 20915574), (2, 10457787), (3, 6971858), (6, 3485929), (109, 191886), (218, 95943), (327, 63962), (654, 31981)]