20912675

素因数分解:

$5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1637}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 30060576

約数和(自身を除く): 9147901

約数列:

[1, 5, 7, 25, 35, 73, 175, 365, 511, 1637, 1825, 2555, 8185, 11459, 12775, 40925, 57295, 119501, 286475, 597505, 836507, 2987525, 4182535, 20912675]

約数ペア:

[(1, 20912675), (5, 4182535), (7, 2987525), (25, 836507), (35, 597505), (73, 286475), (175, 119501), (365, 57295), (511, 40925), (1637, 12775), (1825, 11459), (2555, 8185)]