20989023

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{863}}^1$

素因数の和:955

約数の個数: 24

約数和(自身を含む): 31256064

約数和(自身を除く): 10267041

約数列:

[1, 3, 11, 33, 67, 121, 201, 363, 737, 863, 2211, 2589, 8107, 9493, 24321, 28479, 57821, 104423, 173463, 313269, 636031, 1908093, 6996341, 20989023]

約数ペア:

[(1, 20989023), (3, 6996341), (11, 1908093), (33, 636031), (67, 313269), (121, 173463), (201, 104423), (363, 57821), (737, 28479), (863, 24321), (2211, 9493), (2589, 8107)]