21309291

素因数分解:

$3^3\times {\mathrm{773}}^1\times {\mathrm{1021}}^1$

素因数の和:1803

約数の個数: 16

約数和(自身を含む): 31641120

約数和(自身を除く): 10331829

約数列:

[1, 3, 9, 27, 773, 1021, 2319, 3063, 6957, 9189, 20871, 27567, 789233, 2367699, 7103097, 21309291]

約数ペア:

[(1, 21309291), (3, 7103097), (9, 2367699), (27, 789233), (773, 27567), (1021, 20871), (2319, 9189), (3063, 6957)]