20204023

素因数分解:

$7^2\times {\mathrm{43}}^2\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 18

約数和(自身を含む): 24169824

約数和(自身を除く): 3965801

約数列:

[1, 7, 43, 49, 223, 301, 1561, 1849, 2107, 9589, 10927, 12943, 67123, 90601, 412327, 469861, 2886289, 20204023]

約数ペア:

[(1, 20204023), (7, 2886289), (43, 469861), (49, 412327), (223, 90601), (301, 67123), (1561, 12943), (1849, 10927), (2107, 9589)]