20708925

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3889}}^1$

素因数の和:3973

約数の個数: 24

約数和(自身を含む): 34729920

約数和(自身を除く): 14020995

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 3889, 5325, 11667, 19445, 58335, 97225, 276119, 291675, 828357, 1380595, 4141785, 6902975, 20708925]

約数ペア:

[(1, 20708925), (3, 6902975), (5, 4141785), (15, 1380595), (25, 828357), (71, 291675), (75, 276119), (213, 97225), (355, 58335), (1065, 19445), (1775, 11667), (3889, 5325)]