21625964

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{337}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 38726688

約数和(自身を除く): 17100724

約数列:

[1, 2, 4, 61, 122, 244, 263, 337, 526, 674, 1052, 1348, 16043, 20557, 32086, 41114, 64172, 82228, 88631, 177262, 354524, 5406491, 10812982, 21625964]

約数ペア:

[(1, 21625964), (2, 10812982), (4, 5406491), (61, 354524), (122, 177262), (244, 88631), (263, 82228), (337, 64172), (526, 41114), (674, 32086), (1052, 20557), (1348, 16043)]