18609021

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7411}}^1$

素因数の和:7454

約数の個数: 20

約数和(自身を含む): 28699264

約数和(自身を除く): 10090243

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7411, 22233, 66699, 200097, 229741, 600291, 689223, 2067669, 6203007, 18609021]

約数ペア:

[(1, 18609021), (3, 6203007), (9, 2067669), (27, 689223), (31, 600291), (81, 229741), (93, 200097), (279, 66699), (837, 22233), (2511, 7411)]