Here is just my thinking.

I think the integration range gives you the edge jitter( jittered clock edge compares with ideal clock edge). And cycle number will give you how to calculate the N-cycle jitter from the edge jitter.
For the oscillator system, n-cycle jitter is calculated as sqrt(N)*edge_jitter. But for the driven system, the N-cycle jitter is not dependent on the cycle numbers, which is always sqrt(2)*edge_jitter.