20653889

素因数分解:

${\mathrm{43}}^1\times {\mathrm{67}}^2\times {\mathrm{107}}^1$

素因数の和:284

約数の個数: 12

約数和(自身を含む): 21654864

約数和(自身を除く): 1000975

約数列:

[1, 43, 67, 107, 2881, 4489, 4601, 7169, 193027, 308267, 480323, 20653889]

約数ペア:

[(1, 20653889), (43, 480323), (67, 308267), (107, 193027), (2881, 7169), (4489, 4601)]