21408244

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2879}}^1$

素因数の和:2920

約数の個数: 36

約数和(自身を含む): 44271360

約数和(自身を除く): 22863116

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2879, 3718, 5758, 7436, 11516, 31669, 37427, 63338, 74854, 126676, 149708, 411697, 486551, 823394, 973102, 1646788, 1946204, 5352061, 10704122, 21408244]

約数ペア:

[(1, 21408244), (2, 10704122), (4, 5352061), (11, 1946204), (13, 1646788), (22, 973102), (26, 823394), (44, 486551), (52, 411697), (143, 149708), (169, 126676), (286, 74854), (338, 63338), (572, 37427), (676, 31669), (1859, 11516), (2879, 7436), (3718, 5758)]