20287773

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{823}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 33223680

約数和(自身を除く): 12935907

約数列:

[1, 3, 9, 11, 27, 33, 83, 99, 249, 297, 747, 823, 913, 2241, 2469, 2739, 7407, 8217, 9053, 22221, 24651, 27159, 68309, 81477, 204927, 244431, 614781, 751399, 1844343, 2254197, 6762591, 20287773]

約数ペア:

[(1, 20287773), (3, 6762591), (9, 2254197), (11, 1844343), (27, 751399), (33, 614781), (83, 244431), (99, 204927), (249, 81477), (297, 68309), (747, 27159), (823, 24651), (913, 22221), (2241, 9053), (2469, 8217), (2739, 7407)]