21609153

素因数分解:

$3^3\times {\mathrm{647}}^1\times {\mathrm{1237}}^1$

素因数の和:1893

約数の個数: 16

約数和(自身を含む): 32088960

約数和(自身を除く): 10479807

約数列:

[1, 3, 9, 27, 647, 1237, 1941, 3711, 5823, 11133, 17469, 33399, 800339, 2401017, 7203051, 21609153]

約数ペア:

[(1, 21609153), (3, 7203051), (9, 2401017), (27, 800339), (647, 33399), (1237, 17469), (1941, 11133), (3711, 5823)]