21711861

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18701}}^1$

素因数の和:18753

約数の個数: 16

約数和(自身を含む): 32915520

約数和(自身を除く): 11203659

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18701, 56103, 168309, 504927, 804143, 2412429, 7237287, 21711861]

約数ペア:

[(1, 21711861), (3, 7237287), (9, 2412429), (27, 804143), (43, 504927), (129, 168309), (387, 56103), (1161, 18701)]