19558179

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7789}}^1$

素因数の和:7832

約数の個数: 20

約数和(自身を含む): 30162880

約数和(自身を除く): 10604701

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7789, 23367, 70101, 210303, 241459, 630909, 724377, 2173131, 6519393, 19558179]

約数ペア:

[(1, 19558179), (3, 6519393), (9, 2173131), (27, 724377), (31, 630909), (81, 241459), (93, 210303), (279, 70101), (837, 23367), (2511, 7789)]