28075663

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 9083249

約数列:

[1, 7, 11, 23, 77, 83, 161, 191, 253, 581, 913, 1337, 1771, 1909, 2101, 4393, 6391, 13363, 14707, 15853, 20999, 30751, 48323, 110971, 146993, 174383, 338261, 364619, 1220681, 2552333, 4010809, 28075663]

約数ペア:

[(1, 28075663), (7, 4010809), (11, 2552333), (23, 1220681), (77, 364619), (83, 338261), (161, 174383), (191, 146993), (253, 110971), (581, 48323), (913, 30751), (1337, 20999), (1771, 15853), (1909, 14707), (2101, 13363), (4393, 6391)]