20697837

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{709}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 28490880

約数和(自身を除く): 7793043

約数列:

[1, 3, 37, 111, 263, 709, 789, 2127, 9731, 26233, 29193, 78699, 186467, 559401, 6899279, 20697837]

約数ペア:

[(1, 20697837), (3, 6899279), (37, 559401), (111, 186467), (263, 78699), (709, 29193), (789, 26233), (2127, 9731)]