I'm a factor of 54 and a multiple of 9. At the same time, my factors are 2 and 3. What's my formula

It is a factor of 54 and a multiple of 9. That is 54 ≥ 9N ≥ 9 (n is a non-zero natural number)
6≥ n≥1
So, n = 1, 2, 3, 4, 5, 6
That is: 9 * 1 = 9, 9 * 2 = 18, 9 * 3 = 27, 9 * 4 = 36, 9 * 5 = 45, 9 * 6 = 54
I am: 9, 18, 27, 36, 45, 54