28055781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1193}}^1$

素因数の和:1282

約数の個数: 32

約数和(自身を含む): 45467520

約数和(自身を除く): 17411739

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 871, 1193, 1809, 2613, 3579, 7839, 10737, 15509, 23517, 32211, 46527, 79931, 139581, 239793, 418743, 719379, 1039103, 2158137, 3117309, 9351927, 28055781]

約数ペア:

[(1, 28055781), (3, 9351927), (9, 3117309), (13, 2158137), (27, 1039103), (39, 719379), (67, 418743), (117, 239793), (201, 139581), (351, 79931), (603, 46527), (871, 32211), (1193, 23517), (1809, 15509), (2613, 10737), (3579, 7839)]