30921895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2777}}^1$

素因数の和:2930

約数の個数: 16

約数和(自身を含む): 39603168

約数和(自身を除く): 8681273

約数列:

[1, 5, 17, 85, 131, 655, 2227, 2777, 11135, 13885, 47209, 236045, 363787, 1818935, 6184379, 30921895]

約数ペア:

[(1, 30921895), (5, 6184379), (17, 1818935), (85, 363787), (131, 236045), (655, 47209), (2227, 13885), (2777, 11135)]