Factors / Factors of 147

Factors of 147

1, 3, 7, 21, 49, 147

147 breaks into 3 pairs, tested up to √147 ≈ 12.1; each pair multiplies back to 147 exactly. 147's full pair list is (1, 147), (3, 49), (7, 21), for 6 divisors in total. 147's divisors other than 147 itself sum to just 81, 66 below 147: the common deficient case. 147 is odd, digit sum 12 for 147; small divisors of 147 include 3, 7. 147 has 6 divisors; 146 has 4 and 148 has 6, so 147 wins here. 147 divided by its largest divisor, 49, gives 3.