19868724

素因数分解:

$2^2\times 3^2\times {\mathrm{551909}}^1$

素因数の和:551919

約数の個数: 18

約数和(自身を含む): 50223810

約数和(自身を除く): 30355086

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 551909, 1103818, 1655727, 2207636, 3311454, 4967181, 6622908, 9934362, 19868724]

約数ペア:

[(1, 19868724), (2, 9934362), (3, 6622908), (4, 4967181), (6, 3311454), (9, 2207636), (12, 1655727), (18, 1103818), (36, 551909)]