The divisors of 26 are: 1, 2, 13, 26.
The lowest common multiple of 11 and 13 is 143 (11 X 13) because they have no common divisors.
1, 2, 3, 6, 13, 26, 39, 78
2,4,8 (1 and 16 are divisors too, but the number and 1 are always divisors)
Sum of divisors = 91.
The divisors of 26 are: 1, 2, 13, 26.
The divisors of 39 are 1, 3, 13, and 39
65 has four divisors (factors): 1, 5, 13, 65.
The divisors of 130 are: 1, 2, 5, 10, 13, 26, 65, 130
They are 1, 7, 13, 91.
1, 3, 13, 39.
2 and 13.
1, 5, 13, 65.
1170 over 360 or 13 over 4
The divisors of 169 are 1, 13, and 169.
1, 5, 11, 13, 55, , 65, 143, and 715.
1, 2, 3, 6, 13, 26, 39, 78.