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Mathematics
The sum of all positive divisors of 242 except 1 and itself is
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Q. The sum of all positive divisors of $242$ except $1$ and itself is
KCET
KCET 2011
Binomial Theorem
A
156
71%
B
242
16%
C
342
7%
D
399
6%
Solution:
The number is 242 .
$242=2 \times 11 \times 11 \text { (factors) }$
The number of positive divisors except 1 and itself is $=2,11,22,121$
Sum of these numbers
$=2+ 11 +22 +121=156$