1 and 19. 19 is a Prime number.
The positive integer factors of 703 are: 1, 19, 37, 703
The positive integer factors of 589 are: 1, 19, 31, 589
The positive integer factors of 1007 are: 1, 19, 53, 1007
The positive integer factors of 437 are: 1, 19, 23, 437
The positive integer factors of 475 are: 1, 5, 19, 25, 95, 475
The positive integer factors of 722 are: 1, 2, 19, 38, 361, 722
The positive integer factors of 931 are: 1, 7, 19, 49, 133, 931
No positive integer less than 19 has more factors than 28 does.
The positive integer factors of 304 are: 1, 2, 4, 8, 16, 19, 38, 76, 152, 304 This is a total of 10 positive integer factors.
The positive integer factors of 190 are: 1, 2, 5, 10, 19, 38, 95, 190
The positive integer factors of 418 are: 1, 2, 11, 19, 22, 38, 209, 418
The positive integer common factors of 190 and 285 are: 1, 5, 19, 95