Factors / Factors of 207

Factors of 207

1, 3, 9, 23, 69, 207

207 breaks into 3 pairs, tested up to √207 ≈ 14.4; each pair multiplies back to 207 exactly. 207's full pair list is (1, 207), (3, 69), (9, 23), for 6 divisors in total. 207's divisors other than 207 itself sum to just 105, 102 below 207: the common deficient case. 207 is odd, digit sum 9 for 207; small divisors of 207 include 3, 9. 207 has 6 divisors; 206 has 4 and 208 has 10, so 208 wins here. 207 divided by its largest divisor, 69, gives 3.