21250731

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1549}}^1$

素因数の和:1838

約数の個数: 16

約数和(自身を含む): 30132000

約数和(自身を除く): 8881269

約数列:

[1, 3, 17, 51, 269, 807, 1549, 4573, 4647, 13719, 26333, 78999, 416681, 1250043, 7083577, 21250731]

約数ペア:

[(1, 21250731), (3, 7083577), (17, 1250043), (51, 416681), (269, 78999), (807, 26333), (1549, 13719), (4573, 4647)]