15901138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 27720000

約数和(自身を除く): 11818862

約数列:

[1, 2, 11, 19, 22, 38, 109, 209, 218, 349, 418, 698, 1199, 2071, 2398, 3839, 4142, 6631, 7678, 13262, 22781, 38041, 45562, 72941, 76082, 145882, 418451, 722779, 836902, 1445558, 7950569, 15901138]

約数ペア:

[(1, 15901138), (2, 7950569), (11, 1445558), (19, 836902), (22, 722779), (38, 418451), (109, 145882), (209, 76082), (218, 72941), (349, 45562), (418, 38041), (698, 22781), (1199, 13262), (2071, 7678), (2398, 6631), (3839, 4142)]