Question: C++ code block Problem 4: Perfect Numbers A perfect number is a positive integer equals to the sum of factors without adding the number itself.

C++ code block

Problem 4: Perfect Numbers A perfect number is a positive integer equals to the sum of factors without adding the number itself. For example, the factors sum of 15 is 1+3+5 9 15 and so 15 is not a perfect number, while the factors sum of 28 is 1+2+4+7+14 28 and so 28 is a perfect number. Write a program that finds and prints all perfect numbers in the interval [lower, upper). Sample input /output: Enter lower and upper bounds of the interval: 3 33333 The perfect numbers in the interval [3, 33333] are: 6 28 496 8128

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