What is the smallest perfect number?

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A perfect number is a positive integer that is equal to the sum of its proper positive divisors, excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself).
Ninjai
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Answers by country

6
28
2
128
answers
flagthe Netherlands
70%
5%
23%
0%
17
flagAustralia
67%
9%
16%
6%
31
flagPoland
52%
9%
32%
5%
2122
flagSwitzerland
52%
9%
38%
0%
21
flagthe United States
50%
5%
36%
5%
68
flagPakistan
50%
0%
50%
0%
10
flagCanada
50%
0%
40%
10%
10
flagthe United Kingdom
40%
10%
49%
0%
55
flagGermany
37%
6%
51%
3%
204
flagAustria
33%
10%
51%
5%
39
flagIndia
22%
14%
55%
6%
63