A perfect number equals the sum of its proper divisors
Perfect number
A perfect number equals the sum of its proper divisors
A perfect number is defined as a positive integer equal to the sum of its proper divisors. These divisors exclude the number itself. For instance, 6 is a perfect number because its divisors 1, 2, and 3 sum up to 6.
Example
The number 28 is a perfect number because its divisors 1, 2, 4, 7, and 14 sum up to 28.
Remember this
Understanding perfect numbers helps in studying number theory and the properties of integers.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
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