18120501

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6689}}^1$

素因数の和:6745

約数の個数: 24

約数和(自身を含む): 30613440

約数和(自身を除く): 12492939

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6689, 20067, 46823, 60201, 140469, 287627, 421407, 862881, 2013389, 2588643, 6040167, 18120501]

約数ペア:

[(1, 18120501), (3, 6040167), (7, 2588643), (9, 2013389), (21, 862881), (43, 421407), (63, 287627), (129, 140469), (301, 60201), (387, 46823), (903, 20067), (2709, 6689)]