20915912

素因数分解:

$2^3\times {\mathrm{313}}^1\times {\mathrm{8353}}^1$

素因数の和:8672

約数の個数: 16

約数和(自身を含む): 39347340

約数和(自身を除く): 18431428

約数列:

[1, 2, 4, 8, 313, 626, 1252, 2504, 8353, 16706, 33412, 66824, 2614489, 5228978, 10457956, 20915912]

約数ペア:

[(1, 20915912), (2, 10457956), (4, 5228978), (8, 2614489), (313, 66824), (626, 33412), (1252, 16706), (2504, 8353)]