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
flagAustralia
70%
10%
13%
6%
30
flagthe Netherlands
70%
5%
23%
0%
17
flagPoland
52%
9%
32%
5%
2100
flagSwitzerland
50%
10%
40%
0%
20
flagPakistan
50%
0%
50%
0%
10
flagCanada
50%
0%
40%
10%
10
flagthe United States
49%
4%
38%
6%
63
flagthe United Kingdom
40%
10%
49%
0%
55
flagGermany
36%
7%
52%
3%
196
flagAustria
33%
10%
51%
5%
39
flagIndia
22%
14%
54%
6%
62