18991398

素因数分解:

$2^1\times 3^1\times {\mathrm{1009}}^1\times {\mathrm{3137}}^1$

素因数の和:4151

約数の個数: 16

約数和(自身を含む): 38032560

約数和(自身を除く): 19041162

約数列:

[1, 2, 3, 6, 1009, 2018, 3027, 3137, 6054, 6274, 9411, 18822, 3165233, 6330466, 9495699, 18991398]

約数ペア:

[(1, 18991398), (2, 9495699), (3, 6330466), (6, 3165233), (1009, 18822), (2018, 9411), (3027, 6274), (3137, 6054)]