20809894

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{64627}}^1$

素因数の和:64659

約数の個数: 16

約数和(自身を含む): 37225728

約数和(自身を除く): 16415834

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 64627, 129254, 452389, 904778, 1486421, 2972842, 10404947, 20809894]

約数ペア:

[(1, 20809894), (2, 10404947), (7, 2972842), (14, 1486421), (23, 904778), (46, 452389), (161, 129254), (322, 64627)]