21918559

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{59}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 26051760

約数和(自身を除く): 4133201

約数列:

[1, 13, 17, 41, 59, 221, 533, 697, 767, 1003, 1681, 2419, 9061, 13039, 21853, 28577, 31447, 41123, 99179, 371501, 534599, 1289327, 1686043, 21918559]

約数ペア:

[(1, 21918559), (13, 1686043), (17, 1289327), (41, 534599), (59, 371501), (221, 99179), (533, 41123), (697, 31447), (767, 28577), (1003, 21853), (1681, 13039), (2419, 9061)]