19877139

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{15889}}^1$

素因数の和:16034

約数の個数: 12

約数和(自身を含む): 28919800

約数和(自身を除く): 9042661

約数列:

[1, 3, 9, 139, 417, 1251, 15889, 47667, 143001, 2208571, 6625713, 19877139]

約数ペア:

[(1, 19877139), (3, 6625713), (9, 2208571), (139, 143001), (417, 47667), (1251, 15889)]