71261631

素因数分解:

$3^2\times 7^2\times {\mathrm{161591}}^1$

素因数の和:161611

約数の個数: 18

約数和(自身を含む): 119739672

約数和(自身を除く): 48478041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 161591, 484773, 1131137, 1454319, 3393411, 7917959, 10180233, 23753877, 71261631]

約数ペア:

[(1, 71261631), (3, 23753877), (7, 10180233), (9, 7917959), (21, 3393411), (49, 1454319), (63, 1131137), (147, 484773), (441, 161591)]