28518434

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{19777}}^1$

素因数の和:19889

約数の個数: 16

約数和(自身を含む): 49365888

約数和(自身を除く): 20847454

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 19777, 39554, 138439, 276878, 2037031, 4074062, 14259217, 28518434]

約数ペア:

[(1, 28518434), (2, 14259217), (7, 4074062), (14, 2037031), (103, 276878), (206, 138439), (721, 39554), (1442, 19777)]