28644609

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 21674751

約数列:

[1, 3, 7, 17, 19, 21, 41, 51, 57, 103, 119, 123, 133, 287, 309, 323, 357, 399, 697, 721, 779, 861, 969, 1751, 1957, 2091, 2163, 2261, 2337, 4223, 4879, 5253, 5453, 5871, 6783, 12257, 12669, 13243, 13699, 14637, 16359, 29561, 33269, 36771, 39729, 41097, 71791, 80237, 88683, 92701, 99807, 215373, 232883, 240711, 278103, 502537, 561659, 698649, 1364029, 1507611, 1684977, 4092087, 9548203, 28644609]

約数ペア:

[(1, 28644609), (3, 9548203), (7, 4092087), (17, 1684977), (19, 1507611), (21, 1364029), (41, 698649), (51, 561659), (57, 502537), (103, 278103), (119, 240711), (123, 232883), (133, 215373), (287, 99807), (309, 92701), (323, 88683), (357, 80237), (399, 71791), (697, 41097), (721, 39729), (779, 36771), (861, 33269), (969, 29561), (1751, 16359), (1957, 14637), (2091, 13699), (2163, 13243), (2261, 12669), (2337, 12257), (4223, 6783), (4879, 5871), (5253, 5453)]