Perfect number/Related Articles

See also changes related to Perfect number, or pages that link to Perfect number or to this page or whose text contains "Perfect number".

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Related types of numbers:

• Deficient number
• Abundant number
• Multiply perfect number
• Amicable number
• Sociable number
• Practical number

Related concepts:

• Sum-of-divisors function
• Aliquot sequence

Articles related by keyphrases (Bot populated)

• Natural number [r]: An element of 1, 2, 3, 4, ..., often also including 0. ^[e]