20765605

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3779}}^1$

素因数の和:3948

約数の個数: 16

約数和(自身を含む): 28667520

約数和(自身を除く): 7901915

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3779, 5495, 18895, 26453, 132265, 593303, 2966515, 4153121, 20765605]

約数ペア:

[(1, 20765605), (5, 4153121), (7, 2966515), (35, 593303), (157, 132265), (785, 26453), (1099, 18895), (3779, 5495)]