28571788

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9907}}^1$

素因数の和:10021

約数の個数: 24

約数和(自身を含む): 57704192

約数和(自身を除く): 29132404

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 9907, 19814, 39628, 69349, 138698, 277396, 1020421, 2040842, 4081684, 7142947, 14285894, 28571788]

約数ペア:

[(1, 28571788), (2, 14285894), (4, 7142947), (7, 4081684), (14, 2040842), (28, 1020421), (103, 277396), (206, 138698), (412, 69349), (721, 39628), (1442, 19814), (2884, 9907)]