21751444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3457}}^1$

素因数の和:3496

約数の個数: 36

約数和(自身を含む): 45071572

約数和(自身を除く): 23320128

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 3457, 6292, 6914, 13828, 38027, 44941, 76054, 89882, 152108, 179764, 418297, 494351, 836594, 988702, 1673188, 1977404, 5437861, 10875722, 21751444]

約数ペア:

[(1, 21751444), (2, 10875722), (4, 5437861), (11, 1977404), (13, 1673188), (22, 988702), (26, 836594), (44, 494351), (52, 418297), (121, 179764), (143, 152108), (242, 89882), (286, 76054), (484, 44941), (572, 38027), (1573, 13828), (3146, 6914), (3457, 6292)]