7280721

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{709}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 12109760

約数和(自身を除く): 4829039

約数列:

[1, 3, 7, 9, 21, 63, 163, 489, 709, 1141, 1467, 2127, 3423, 4963, 6381, 10269, 14889, 44667, 115567, 346701, 808969, 1040103, 2426907, 7280721]

約数ペア:

[(1, 7280721), (3, 2426907), (7, 1040103), (9, 808969), (21, 346701), (63, 115567), (163, 44667), (489, 14889), (709, 10269), (1141, 6381), (1467, 4963), (2127, 3423)]