20666259

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11093}}^1$

素因数の和:11128

約数の個数: 20

約数和(自身を含む): 32216976

約数和(自身を除く): 11550717

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11093, 33279, 99837, 255139, 299511, 765417, 898533, 2296251, 6888753, 20666259]

約数ペア:

[(1, 20666259), (3, 6888753), (9, 2296251), (23, 898533), (27, 765417), (69, 299511), (81, 255139), (207, 99837), (621, 33279), (1863, 11093)]