28227771

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2437}}^1$

素因数の和:2473

約数の個数: 40

約数和(自身を含む): 49559664

約数和(自身を除く): 21331893

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 2437, 3861, 7311, 11583, 21933, 26807, 31681, 65799, 80421, 95043, 197397, 241263, 285129, 348491, 723789, 855387, 1045473, 2171367, 2566161, 3136419, 9409257, 28227771]

約数ペア:

[(1, 28227771), (3, 9409257), (9, 3136419), (11, 2566161), (13, 2171367), (27, 1045473), (33, 855387), (39, 723789), (81, 348491), (99, 285129), (117, 241263), (143, 197397), (297, 95043), (351, 80421), (429, 65799), (891, 31681), (1053, 26807), (1287, 21933), (2437, 11583), (3861, 7311)]