21604125

素因数分解:

$3^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 36661248

約数和(自身を除く): 15057123

約数列:

[1, 3, 5, 15, 25, 53, 75, 125, 159, 265, 375, 795, 1087, 1325, 3261, 3975, 5435, 6625, 16305, 19875, 27175, 57611, 81525, 135875, 172833, 288055, 407625, 864165, 1440275, 4320825, 7201375, 21604125]

約数ペア:

[(1, 21604125), (3, 7201375), (5, 4320825), (15, 1440275), (25, 864165), (53, 407625), (75, 288055), (125, 172833), (159, 135875), (265, 81525), (375, 57611), (795, 27175), (1087, 19875), (1325, 16305), (3261, 6625), (3975, 5435)]