2660821569

素因数分解:

$3^6\times 7^2\times {\mathrm{74489}}^1$

素因数の和:74521

約数の個数: 42

約数和(自身を含む): 4640801490

約数和(自身を除く): 1979979921

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 3969, 5103, 11907, 35721, 74489, 223467, 521423, 670401, 1564269, 2011203, 3649961, 4692807, 6033609, 10949883, 14078421, 18100827, 32849649, 42235263, 54302481, 98548947, 126705789, 295646841, 380117367, 886940523, 2660821569]

約数ペア:

[(1, 2660821569), (3, 886940523), (7, 380117367), (9, 295646841), (21, 126705789), (27, 98548947), (49, 54302481), (63, 42235263), (81, 32849649), (147, 18100827), (189, 14078421), (243, 10949883), (441, 6033609), (567, 4692807), (729, 3649961), (1323, 2011203), (1701, 1564269), (3969, 670401), (5103, 521423), (11907, 223467), (35721, 74489)]