21820125

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1877}}^1$

素因数の和:1926

約数の個数: 32

約数和(自身を含む): 37499904

約数和(自身を除く): 15679779

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 375, 465, 775, 1877, 2325, 3875, 5631, 9385, 11625, 28155, 46925, 58187, 140775, 174561, 234625, 290935, 703875, 872805, 1454675, 4364025, 7273375, 21820125]

約数ペア:

[(1, 21820125), (3, 7273375), (5, 4364025), (15, 1454675), (25, 872805), (31, 703875), (75, 290935), (93, 234625), (125, 174561), (155, 140775), (375, 58187), (465, 46925), (775, 28155), (1877, 11625), (2325, 9385), (3875, 5631)]