20206720009

素因数分解:

$7^2\times {\mathrm{1979}}^1\times {\mathrm{208379}}^1$

素因数の和:210372

約数の個数: 12

約数和(自身を含む): 23517766800

約数和(自身を除く): 3311046791

約数列:

[1, 7, 49, 1979, 13853, 96971, 208379, 1458653, 10210571, 412382041, 2886674287, 20206720009]

約数ペア:

[(1, 20206720009), (7, 2886674287), (49, 412382041), (1979, 10210571), (13853, 1458653), (96971, 208379)]