21401125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{9011}}^1$

素因数の和:9045

約数の個数: 16

約数和(自身を含む): 28117440

約数和(自身を除く): 6716315

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 9011, 45055, 171209, 225275, 856045, 1126375, 4280225, 21401125]

約数ペア:

[(1, 21401125), (5, 4280225), (19, 1126375), (25, 856045), (95, 225275), (125, 171209), (475, 45055), (2375, 9011)]