Factors / Factors of 210

Factors of 210

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

210 breaks into 8 pairs, tested up to √210 ≈ 14.5; each pair multiplies back to 210 exactly. 210's full pair list is (1, 210), (2, 105), (3, 70), (5, 42), (6, 35), (7, 30), (10, 21), (14, 15), for 16 divisors in total. 210's divisors other than 210 itself sum to 366, 156 above 210: abundant. 210 is even, digit sum 3 for 210; small divisors of 210 include 2, 3, 5, 6, 7. 210 has 16 divisors; 209 has 4 and 211 has 2, so 210 wins here. 210 divided by its largest divisor, 105, gives 2.