21556414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^2\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 24

約数和(自身を含む): 35953848

約数和(自身を除く): 14397434

約数列:

[1, 2, 11, 22, 79, 157, 158, 314, 869, 1727, 1738, 3454, 6241, 12403, 12482, 24806, 68651, 136433, 137302, 272866, 979837, 1959674, 10778207, 21556414]

約数ペア:

[(1, 21556414), (2, 10778207), (11, 1959674), (22, 979837), (79, 272866), (157, 137302), (158, 136433), (314, 68651), (869, 24806), (1727, 12482), (1738, 12403), (3454, 6241)]