A perfect number is a positive integer that is equal to the sum of its proper divisors, excluding itself. In other words, if \( n \) is a perfect number, then the sum of its divisors (excluding \( n \)) equals \( n \). For example: - The smallest perfect number is 6. Its divisors are 1, 2, and 3.

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  1. Integer sequences
  2. Numbers
  3. Arithmetic
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