28718753

素因数分解:

$7^2\times {\mathrm{409}}^1\times {\mathrm{1433}}^1$

素因数の和:1856

約数の個数: 12

約数和(自身を含む): 33512580

約数和(自身を除く): 4793827

約数列:

[1, 7, 49, 409, 1433, 2863, 10031, 20041, 70217, 586097, 4102679, 28718753]

約数ペア:

[(1, 28718753), (7, 4102679), (49, 586097), (409, 70217), (1433, 20041), (2863, 10031)]