20809330339

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{18464357}}^1$

素因数の和:18464394

約数の個数: 12

約数和(自身を含む): 25259241744

約数和(自身を除く): 4449911405

約数列:

[1, 7, 23, 49, 161, 1127, 18464357, 129250499, 424680211, 904753493, 2972761477, 20809330339]

約数ペア:

[(1, 20809330339), (7, 2972761477), (23, 904753493), (49, 424680211), (161, 129250499), (1127, 18464357)]