1344 13:  13
   1344 19:  19
   1344 1f:  1f
   1792 15:  7^2
   2880 16:  2 b
   2880 17:  3 d
   2880 1a:  2 d
   2880 1d:  3 b
   4096 10:  2^4
   4096 11:  3^4
   4480 1b:  3^2 7
   4480 1c:  2^2 7
   6720 12:  2 3 7
   7680 18:  2^3 3
   7680 1e:  2 3^3
   8960 14:  2^2 3^2