20961736

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25439}}^1$

素因数の和:25548

約数の個数: 16

約数和(自身を含む): 39686400

約数和(自身を除く): 18724664

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25439, 50878, 101756, 203512, 2620217, 5240434, 10480868, 20961736]

約数ペア:

[(1, 20961736), (2, 10480868), (4, 5240434), (8, 2620217), (103, 203512), (206, 101756), (412, 50878), (824, 25439)]