The only pair of such numbers you can be sure of is " 3 and 8 ".
To find other pairs, it would depend on how you intend to handle them.
For example ...
-- Addition.
There are an infinite number of answers, such as (8, 30) and (18, 20).
-- Subtraction.
There are an infinite number of answers, such as (36, -2) and (50, 12).
-- Multiplication.
There are an infinite number of answers, such as (19, 2) and (38, 1).
-- Division.
There are an infinite number of answers, such as (76, 2) and (19, 1/2).
38 and 8
38 is not a prime number. It can be factored as 2 x 19.
2 x 19 = 38
29 & 38
No, 36 and 38 are two numbers between 30 and 40, Their GCF is 2.
10 + 28 are two triangle numbers that, added together total 38.
38 and 8
Two . . . . . 38 and 83.
28 and 10 are both triangular numbers and add up to 38
2*19 = 38
38 is not a prime number. It can be factored as 2 x 19.
How about: 31+7 = 38
38
19 * 2 equals 38.
2 x 19 = 38
29 & 38
There is only one number that equals 38. That number is . . . . . 38.