20199235

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9461}}^1$

素因数の和:9534

約数の個数: 16

約数和(自身を含む): 28158912

約数和(自身を除く): 7959677

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9461, 47305, 66227, 331135, 577121, 2885605, 4039847, 20199235]

約数ペア:

[(1, 20199235), (5, 4039847), (7, 2885605), (35, 577121), (61, 331135), (305, 66227), (427, 47305), (2135, 9461)]