21608509

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{4409}}^1$

素因数の和:4464

約数の個数: 12

約数和(自身を含む): 24210900

約数和(自身を除く): 2602391

約数列:

[1, 13, 29, 169, 377, 4409, 4901, 57317, 127861, 745121, 1662193, 21608509]

約数ペア:

[(1, 21608509), (13, 1662193), (29, 745121), (169, 127861), (377, 57317), (4409, 4901)]