20625412

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2687}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 38384640

約数和(自身を除く): 17759228

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2687, 3838, 5374, 7676, 10748, 51053, 102106, 204212, 271387, 542774, 1085548, 5156353, 10312706, 20625412]

約数ペア:

[(1, 20625412), (2, 10312706), (4, 5156353), (19, 1085548), (38, 542774), (76, 271387), (101, 204212), (202, 102106), (404, 51053), (1919, 10748), (2687, 7676), (3838, 5374)]