20565862545

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10007719}}^1$

素因数の和:10007864

約数の個数: 16

約数和(自身を含む): 33145568640

約数和(自身を除く): 12579706095

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 10007719, 30023157, 50038595, 150115785, 1371057503, 4113172509, 6855287515, 20565862545]

約数ペア:

[(1, 20565862545), (3, 6855287515), (5, 4113172509), (15, 1371057503), (137, 150115785), (411, 50038595), (685, 30023157), (2055, 10007719)]