19805454

素因数分解:

$2^1\times 3^2\times {\mathrm{1100303}}^1$

素因数の和:1100311

約数の個数: 12

約数和(自身を含む): 42911856

約数和(自身を除く): 23106402

約数列:

[1, 2, 3, 6, 9, 18, 1100303, 2200606, 3300909, 6601818, 9902727, 19805454]

約数ペア:

[(1, 19805454), (2, 9902727), (3, 6601818), (6, 3300909), (9, 2200606), (18, 1100303)]