A lot. I'll let you count them.
1, 3, 5, 7, 9, 11, 13, 15, 21, 27, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 135, 143, 165, 189, 195, 231, 273, 297, 315, 351, 385, 429, 455, 495, 585, 693, 715, 819, 945, 1001, 1155, 1287, 1365, 1485, 1755, 2079, 2145, 2457, 3003, 3465, 3861, 4095, 5005, 6435, 9009, 10395, 12285, 15015, 19305, 27027, 45045, 135135
163
0.135135 = 135135/1000000 = 27027/200000
The Colt Model 1911 .45 Automatic Pistol with a Hartford serial number of 135135 was manufactured in 1918. Colt's production records indicate that serial numbers in that range were produced during the final years of World War I. For precise dating, consult Colt's reference materials or a dedicated firearms historian.
Six factors.
There can be infinitely many distinct factors.
the factors are 1,2,3,4,6,8,12,24 and it has 8 factors
Seven factors.
10 factors
Two factors.
24 factors.
Six factors
Four factors