231
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1 x 231, 3 x 77, 21 x 11, 33 x 7. Add the digits and you get 6, which means it is divisible by 3. (3 x 77) 77 has two prime factors, 7 and 11. So you can multiply any combination of the factors to get 231. 3C2 (3 choose 2) in Pascal's triangle is 3, which means there are three possible combinations. Oh, yeah, and you can always just do 1 x 231.
1 x 77, 7 x 11
5929How you get it is to first multiply 77 with 7 and get 539. Then multiply 77 by 70 by multiplying by 7 again as before, but adding a 0 on the end. That gives 5390. Then add 539 to 5390 and get 5929.
2 x 4 x 16
650