21815456

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{229}}^2$

素因数の和:481

約数の個数: 36

約数和(自身を含む): 46455822

約数和(自身を除く): 24640366

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 229, 416, 458, 916, 1832, 2977, 3664, 5954, 7328, 11908, 23816, 47632, 52441, 95264, 104882, 209764, 419528, 681733, 839056, 1363466, 1678112, 2726932, 5453864, 10907728, 21815456]

約数ペア:

[(1, 21815456), (2, 10907728), (4, 5453864), (8, 2726932), (13, 1678112), (16, 1363466), (26, 839056), (32, 681733), (52, 419528), (104, 209764), (208, 104882), (229, 95264), (416, 52441), (458, 47632), (916, 23816), (1832, 11908), (2977, 7328), (3664, 5954)]