20265557

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 22619520

約数和(自身を除く): 2353963

約数列:

[1, 13, 53, 67, 439, 689, 871, 3551, 5707, 23267, 29413, 46163, 302471, 382369, 1558889, 20265557]

約数ペア:

[(1, 20265557), (13, 1558889), (53, 382369), (67, 302471), (439, 46163), (689, 29413), (871, 23267), (3551, 5707)]