20958375

素因数分解:

$3^1\times 5^3\times {\mathrm{55889}}^1$

素因数の和:55907

約数の個数: 16

約数和(自身を含む): 34875360

約数和(自身を除く): 13916985

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 55889, 167667, 279445, 838335, 1397225, 4191675, 6986125, 20958375]

約数ペア:

[(1, 20958375), (3, 6986125), (5, 4191675), (15, 1397225), (25, 838335), (75, 279445), (125, 167667), (375, 55889)]