20199702621

素因数分解:

$3^1\times 7^2\times {\mathrm{137412943}}^1$

素因数の和:137412960

約数の個数: 12

約数和(自身を含む): 31330151232

約数和(自身を除く): 11130448611

約数列:

[1, 3, 7, 21, 49, 147, 137412943, 412238829, 961890601, 2885671803, 6733234207, 20199702621]

約数ペア:

[(1, 20199702621), (3, 6733234207), (7, 2885671803), (21, 961890601), (49, 412238829), (147, 137412943)]