Question

The sum of all positive divisors of $242$ except $1$ and itself is

• A. 156
• B. 242
• C. 342
• D. 399

Answer 1

Answer: (A)

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
$=2+11+22+121=156$