18738297

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3169}}^1$

素因数の和:3254

約数の個数: 20

約数和(自身を含む): 28384180

約数和(自身を除く): 9645883

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 3169, 5913, 9507, 28521, 85563, 231337, 256689, 694011, 2082033, 6246099, 18738297]

約数ペア:

[(1, 18738297), (3, 6246099), (9, 2082033), (27, 694011), (73, 256689), (81, 231337), (219, 85563), (657, 28521), (1971, 9507), (3169, 5913)]