21715837

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{839}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 25683840

約数和(自身を除く): 3968003

約数列:

[1, 11, 13, 143, 181, 839, 1991, 2353, 9229, 10907, 25883, 119977, 151859, 1670449, 1974167, 21715837]

約数ペア:

[(1, 21715837), (11, 1974167), (13, 1670449), (143, 151859), (181, 119977), (839, 25883), (1991, 10907), (2353, 9229)]