Question: (C++) Develop a program with a function to determine whether a positive integer is a perfect number. The main function needs to test this function

(C++) Develop a program with a function to determine whether a positive integer is a perfect number. The "main" function needs to test this function by using test cases which represent all possible behaviors of the function. Use good design principles including the preconditions and postconditions outlined by the book. Check that the program compiles and runs correctly

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