21311056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3533}}^1$

素因数の和:3583

約数の個数: 40

約数和(自身を含む): 46012680

約数和(自身を除く): 24701624

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3533, 6032, 7066, 14132, 28264, 45929, 56528, 91858, 102457, 183716, 204914, 367432, 409828, 734864, 819656, 1331941, 1639312, 2663882, 5327764, 10655528, 21311056]

約数ペア:

[(1, 21311056), (2, 10655528), (4, 5327764), (8, 2663882), (13, 1639312), (16, 1331941), (26, 819656), (29, 734864), (52, 409828), (58, 367432), (104, 204914), (116, 183716), (208, 102457), (232, 91858), (377, 56528), (464, 45929), (754, 28264), (1508, 14132), (3016, 7066), (3533, 6032)]