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
72%
10%
10%
6%
29
flagthe Netherlands
70%
5%
23%
0%
17
flagPoland
51%
9%
32%
5%
1858
flagthe United States
51%
5%
35%
5%
54
flagSwitzerland
41%
16%
41%
0%
12
flagGermany
37%
7%
51%
3%
131
flagthe United Kingdom
35%
15%
50%
0%
40
flagAustria
32%
8%
52%
8%
25
flagIndia
22%
14%
54%
6%
61