20381569136

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12367457}}^1$

素因数の和:12367568

約数の個数: 20

約数和(自身を含む): 39872684592

約数和(自身を除く): 19491115456

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12367457, 24734914, 49469828, 98939656, 197879312, 1273848071, 2547696142, 5095392284, 10190784568, 20381569136]

約数ペア:

[(1, 20381569136), (2, 10190784568), (4, 5095392284), (8, 2547696142), (16, 1273848071), (103, 197879312), (206, 98939656), (412, 49469828), (824, 24734914), (1648, 12367457)]