28255311

素因数分解:

$3^6\times 7^3\times {\mathrm{113}}^1$

素因数の和:152

約数の個数: 56

約数和(自身を含む): 49840800

約数和(自身を除く): 21585489

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 113, 147, 189, 243, 339, 343, 441, 567, 729, 791, 1017, 1029, 1323, 1701, 2373, 3051, 3087, 3969, 5103, 5537, 7119, 9153, 9261, 11907, 16611, 21357, 27459, 27783, 35721, 38759, 49833, 64071, 82377, 83349, 116277, 149499, 192213, 250047, 348831, 448497, 576639, 1046493, 1345491, 3139479, 4036473, 9418437, 28255311]

約数ペア:

[(1, 28255311), (3, 9418437), (7, 4036473), (9, 3139479), (21, 1345491), (27, 1046493), (49, 576639), (63, 448497), (81, 348831), (113, 250047), (147, 192213), (189, 149499), (243, 116277), (339, 83349), (343, 82377), (441, 64071), (567, 49833), (729, 38759), (791, 35721), (1017, 27783), (1029, 27459), (1323, 21357), (1701, 16611), (2373, 11907), (3051, 9261), (3087, 9153), (3969, 7119), (5103, 5537)]