21843725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 29016000

約数和(自身を除く): 7172275

約数列:

[1, 5, 17, 25, 85, 103, 425, 499, 515, 1751, 2495, 2575, 8483, 8755, 12475, 42415, 43775, 51397, 212075, 256985, 873749, 1284925, 4368745, 21843725]

約数ペア:

[(1, 21843725), (5, 4368745), (17, 1284925), (25, 873749), (85, 256985), (103, 212075), (425, 51397), (499, 43775), (515, 42415), (1751, 12475), (2495, 8755), (2575, 8483)]