Given the task definition and input, reply with output. In this task, you are given a list of integers you need to calculate and return the range of the integers which is the difference between maximum and minimum element in the list.

[286, 487, 492, 203, 313, 204, 269, 245, 294, 499, 148, 134, 396, 166, 305, 137, 251, 55, 364, 231]
444