19215081

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{887}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 29090880

約数和(自身を除く): 9875799

約数列:

[1, 3, 9, 29, 83, 87, 249, 261, 747, 887, 2407, 2661, 7221, 7983, 21663, 25723, 73621, 77169, 220863, 231507, 662589, 2135009, 6405027, 19215081]

約数ペア:

[(1, 19215081), (3, 6405027), (9, 2135009), (29, 662589), (83, 231507), (87, 220863), (249, 77169), (261, 73621), (747, 25723), (887, 21663), (2407, 7983), (2661, 7221)]