18156768189

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20107163}}^1$

素因数の和:20107216

約数の個数: 16

約数和(自身を含む): 28310886912

約数和(自身を除く): 10154118723

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20107163, 60321489, 140750141, 422250423, 864608009, 2593824027, 6052256063, 18156768189]

約数ペア:

[(1, 18156768189), (3, 6052256063), (7, 2593824027), (21, 864608009), (43, 422250423), (129, 140750141), (301, 60321489), (903, 20107163)]