Question (81/84)
A number N is said to be perfect if the sum of all its divisors, excluding number itself, is equal to N. Find the perfect number N ?(A) 6
(B) 9
(C) 15
(D) 21
Question (82/84)
Which of the following number has most number of divisors ?(A) 99
(B) 101
(C) 176
(D) 182