28786311

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2371}}^1$

素因数の和:2467

約数の個数: 24

約数和(自身を含む): 44403840

約数和(自身を除く): 15617529

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 2371, 4047, 7113, 12141, 21339, 45049, 135147, 168341, 405441, 505023, 1515069, 3198479, 9595437, 28786311]

約数ペア:

[(1, 28786311), (3, 9595437), (9, 3198479), (19, 1515069), (57, 505023), (71, 405441), (171, 168341), (213, 135147), (639, 45049), (1349, 21339), (2371, 12141), (4047, 7113)]