1 and 243.
243 has a decent number of factors (1, 3, 9, 27, 81, 243), so you have a few choices. The most obvious one is simply 243 * 1 = 243. 3 * 81 and 9 * 27 also work.
81 x 3 = 243
Here are two: 324+657=981, and 243+576=819
How about: 9 and 27
The prime factorization of 243 will require 5 numbers. It is possible to write a factorization in two numbers, but they won't both be prime. 3 x 3 x 3 x 3 x 3 = 243 9 x 27 = 243
1 x 243, 3 x 81, 9 x 27.
243
1 x 243, 3 x 81, 9 x 27
Each number is 3 times the previous number, so the next two numbers are 243 and 729: 3 x 81 = 243 3 x 243 = 729
How about: 2*243 = 486 as one example
Not counting negative numbers and only adding, there are 244 combinations of two numbers that add to 486.0+4861+485to243+243
4600