21052107

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{101701}}^1$

素因数の和:101730

約数の個数: 12

約数和(自身を含む): 31731024

約数和(自身を除く): 10678917

約数列:

[1, 3, 9, 23, 69, 207, 101701, 305103, 915309, 2339123, 7017369, 21052107]

約数ペア:

[(1, 21052107), (3, 7017369), (9, 2339123), (23, 915309), (69, 305103), (207, 101701)]