A perfect number is a positive integer that is equal to the sum of its proper divisors, excluding itself. In simpler terms, a perfect number is a number that is the sum of its divisors (excluding the number itself). For example: - The first perfect number is 6. Its divisors are 1, 2, and 3, and their sum is \(1 + 2 + 3 = 6\). - The second perfect number is 28.
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