What are two things that the amount of gravitational force between two object depends on

The equation behind this question is:

g = (G*m*M) / (r^2)

g is the gravitational force

G is the Universal Gravitational Constant

M is the mass of one object

and m is the mass of the other constant

r is the distance between the two objects

1). the product of the two masses being gravitationally attracted to each other

2). the distance between their centers of mass

And that's IT. The gravitational force between them depends on

only those two things, nothing else.