20512073365

素因数分解:

$5^1\times 7^1\times {\mathrm{28559}}^1\times {\mathrm{20521}}^1$

素因数の和:49092

約数の個数: 16

約数和(自身を含む): 28133199360

約数和(自身を除く): 7621125995

約数列:

[1, 5, 7, 35, 20521, 28559, 102605, 142795, 143647, 199913, 718235, 999565, 586059239, 2930296195, 4102414673, 20512073365]

約数ペア:

[(1, 20512073365), (5, 4102414673), (7, 2930296195), (35, 586059239), (20521, 999565), (28559, 718235), (102605, 199913), (142795, 143647)]