+**Divisor Sum** is the total of all positive [Divisors](/wiki/Divisor) of a given integer, including itself. This simple yet profound idea in [Number Theory](/wiki/Number_Theory) unveils a number's intrinsic structure, linking to classifications like perfect or abundant numbers.
+## See also
+- [Perfect Number](/wiki/Perfect_Number)
+- [Amicable Number](/wiki/Amicable_Number)
+- [Prime Number](/wiki/Prime_Number)
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