21077714

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 37380096

約数和(自身を除く): 16302382

約数列:

[1, 2, 7, 14, 47, 94, 103, 206, 311, 329, 622, 658, 721, 1442, 2177, 4354, 4841, 9682, 14617, 29234, 32033, 33887, 64066, 67774, 102319, 204638, 224231, 448462, 1505551, 3011102, 10538857, 21077714]

約数ペア:

[(1, 21077714), (2, 10538857), (7, 3011102), (14, 1505551), (47, 448462), (94, 224231), (103, 204638), (206, 102319), (311, 67774), (329, 64066), (622, 33887), (658, 32033), (721, 29234), (1442, 14617), (2177, 9682), (4354, 4841)]