21281576

素因数分解:

$2^3\times {\mathrm{457}}^1\times {\mathrm{5821}}^1$

素因数の和:6284

約数の個数: 16

約数和(自身を含む): 39997140

約数和(自身を除く): 18715564

約数列:

[1, 2, 4, 8, 457, 914, 1828, 3656, 5821, 11642, 23284, 46568, 2660197, 5320394, 10640788, 21281576]

約数ペア:

[(1, 21281576), (2, 10640788), (4, 5320394), (8, 2660197), (457, 46568), (914, 23284), (1828, 11642), (3656, 5821)]