Move auxiliar function out of main

src/Julia/Problems001-050/Problem012.jl

@@ -9,6 +9,13 @@ https://projecteuler.net/problem=12 =#
 
 using BenchmarkTools
 
+
+function num_divisors(number::Int64)
+    res = isqrt(number)
+    return 2 * count(number % i == 0 for i = 1:res) - (res^2 == number)
+end
+
+
 function Problem12()
     #=
      The sequence of triangle numbers is generated by adding the natural
@@ -33,12 +40,6 @@ function Problem12()
     What is the value of the first triangle number to have over five hundred
     divisors? =#
 
-    function num_divisors(number::Int64)
-        res = isqrt(number)
-        return 2 * count(number % i == 0 for i = 1:res) - (res^2 == number)
-    end
-
-
     ans::Int64 = 0
     for number in Iterators.countfrom(1)
         ans += number