Factors / Factors of 215

Factors of 215

1, 5, 43, 215

215 breaks into 2 pairs, tested up to √215 ≈ 14.7; each pair multiplies back to 215 exactly. 215's full pair list is (1, 215), (5, 43), for 4 divisors in total. 215's divisors other than 215 itself sum to just 49, 166 below 215: the common deficient case. 215 is odd, digit sum 8 for 215; small divisors of 215 include 5. 215 has 4 divisors; 214 has 4 and 216 has 16, so 216 wins here. 215 divided by its largest divisor, 43, gives 5.