20620951

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 23361184

約数和(自身を除く): 2740233

約数列:

[1, 13, 37, 43, 481, 559, 997, 1591, 12961, 20683, 36889, 42871, 479557, 557323, 1586227, 20620951]

約数ペア:

[(1, 20620951), (13, 1586227), (37, 557323), (43, 479557), (481, 42871), (559, 36889), (997, 20683), (1591, 12961)]