18721197

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1489}}^1$

素因数の和:1633

約数の個数: 24

約数和(自身を含む): 29752320

約数和(自身を除く): 11031123

約数列:

[1, 3, 9, 11, 33, 99, 127, 381, 1143, 1397, 1489, 4191, 4467, 12573, 13401, 16379, 49137, 147411, 189103, 567309, 1701927, 2080133, 6240399, 18721197]

約数ペア:

[(1, 18721197), (3, 6240399), (9, 2080133), (11, 1701927), (33, 567309), (99, 189103), (127, 147411), (381, 49137), (1143, 16379), (1397, 13401), (1489, 12573), (4191, 4467)]