21971599

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2687}}^1$

素因数の和:2754

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 3768689

約数列:

[1, 13, 17, 37, 221, 481, 629, 2687, 8177, 34931, 45679, 99419, 593827, 1292447, 1690123, 21971599]

約数ペア:

[(1, 21971599), (13, 1690123), (17, 1292447), (37, 593827), (221, 99419), (481, 45679), (629, 34931), (2687, 8177)]