28398867

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9871}}^1$

素因数の和:10018

約数の個数: 16

約数和(自身を含む): 43594752

約数和(自身を除く): 15195885

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 9871, 29613, 69097, 207291, 1352327, 4056981, 9466289, 28398867]

約数ペア:

[(1, 28398867), (3, 9466289), (7, 4056981), (21, 1352327), (137, 207291), (411, 69097), (959, 29613), (2877, 9871)]