20205297

素因数分解:

$3^2\times 7^2\times {\mathrm{45817}}^1$

素因数の和:45837

約数の個数: 18

約数和(自身を含む): 33951138

約数和(自身を除く): 13745841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45817, 137451, 320719, 412353, 962157, 2245033, 2886471, 6735099, 20205297]

約数ペア:

[(1, 20205297), (3, 6735099), (7, 2886471), (9, 2245033), (21, 962157), (49, 412353), (63, 320719), (147, 137451), (441, 45817)]