19481391

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10457}}^1$

素因数の和:10492

約数の個数: 20

約数和(自身を含む): 30370032

約数和(自身を除く): 10888641

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10457, 31371, 94113, 240511, 282339, 721533, 847017, 2164599, 6493797, 19481391]

約数ペア:

[(1, 19481391), (3, 6493797), (9, 2164599), (23, 847017), (27, 721533), (69, 282339), (81, 240511), (207, 94113), (621, 31371), (1863, 10457)]