21115996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{479909}}^1$

素因数の和:479924

約数の個数: 12

約数和(自身を含む): 40312440

約数和(自身を除く): 19196444

約数列:

[1, 2, 4, 11, 22, 44, 479909, 959818, 1919636, 5278999, 10557998, 21115996]

約数ペア:

[(1, 21115996), (2, 10557998), (4, 5278999), (11, 1919636), (22, 959818), (44, 479909)]