20578054

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63907}}^1$

素因数の和:63939

約数の個数: 16

約数和(自身を含む): 36811008

約数和(自身を除く): 16232954

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 63907, 127814, 447349, 894698, 1469861, 2939722, 10289027, 20578054]

約数ペア:

[(1, 20578054), (2, 10289027), (7, 2939722), (14, 1469861), (23, 894698), (46, 447349), (161, 127814), (322, 63907)]