17278261

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 23821056

約数和(自身を除く): 6542795

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 287, 421, 451, 533, 1001, 2947, 3157, 3731, 4631, 5473, 5863, 17261, 32417, 38311, 41041, 60203, 120827, 189871, 224393, 421421, 1329097, 1570751, 2468323, 17278261]

約数ペア:

[(1, 17278261), (7, 2468323), (11, 1570751), (13, 1329097), (41, 421421), (77, 224393), (91, 189871), (143, 120827), (287, 60203), (421, 41041), (451, 38311), (533, 32417), (1001, 17261), (2947, 5863), (3157, 5473), (3731, 4631)]