21539625

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 14852055

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 809, 1065, 1775, 2427, 4045, 5325, 8875, 12135, 20225, 26625, 57439, 60675, 101125, 172317, 287195, 303375, 861585, 1435975, 4307925, 7179875, 21539625]

約数ペア:

[(1, 21539625), (3, 7179875), (5, 4307925), (15, 1435975), (25, 861585), (71, 303375), (75, 287195), (125, 172317), (213, 101125), (355, 60675), (375, 57439), (809, 26625), (1065, 20225), (1775, 12135), (2427, 8875), (4045, 5325)]