18688270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 35855136

約数和(自身を除く): 17166866

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 211, 422, 521, 1042, 1055, 2110, 2605, 3587, 5210, 7174, 8857, 17714, 17935, 35870, 44285, 88570, 109931, 219862, 549655, 1099310, 1868827, 3737654, 9344135, 18688270]

約数ペア:

[(1, 18688270), (2, 9344135), (5, 3737654), (10, 1868827), (17, 1099310), (34, 549655), (85, 219862), (170, 109931), (211, 88570), (422, 44285), (521, 35870), (1042, 17935), (1055, 17714), (2110, 8857), (2605, 7174), (3587, 5210)]