20407311

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{911}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 31299840

約数和(自身を除く): 10892529

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 911, 1179, 2489, 2733, 7467, 8199, 17309, 22401, 51927, 119341, 155781, 358023, 1074069, 2267479, 6802437, 20407311]

約数ペア:

[(1, 20407311), (3, 6802437), (9, 2267479), (19, 1074069), (57, 358023), (131, 155781), (171, 119341), (393, 51927), (911, 22401), (1179, 17309), (2489, 8199), (2733, 7467)]