9921125

素因数分解:

$5^3\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:725

約数の個数: 16

約数和(自身を含む): 12492480

約数和(自身を除く): 2571355

約数列:

[1, 5, 25, 125, 139, 571, 695, 2855, 3475, 14275, 17375, 71375, 79369, 396845, 1984225, 9921125]

約数ペア:

[(1, 9921125), (5, 1984225), (25, 396845), (125, 79369), (139, 71375), (571, 17375), (695, 14275), (2855, 3475)]