20780211697

素因数分解:

$7^2\times {\mathrm{953}}^1\times {\mathrm{445001}}^1$

素因数の和:445968

約数の個数: 12

約数和(自身を含む): 24198318756

約数和(自身を除く): 3418107059

約数列:

[1, 7, 49, 953, 6671, 46697, 445001, 3115007, 21805049, 424085953, 2968601671, 20780211697]

約数ペア:

[(1, 20780211697), (7, 2968601671), (49, 424085953), (953, 21805049), (6671, 3115007), (46697, 445001)]