Factors / Factors of 121

Factors of 121

1, 11, 121

121 is a perfect square (11² = 121); that gives 121 an odd 3-divisor count, since only 11 pairs with itself. 121's full pair list is (1, 121), (11, 11), for 3 divisors in total. 121's divisors other than 121 itself sum to just 12, 109 below 121: the common deficient case. 121 is odd, digit sum 4 for 121; small divisors of 121 include 11. 121 has 3 divisors; 120 has 16 and 122 has 4, so 120 wins here. 121 divided by its largest divisor, 11, gives 11.