How do i debug this code of the 'typeerror: 'int' object is not callable' error in python?

Hey guys! I want to write a program that finds the sum of cubed terms. i.e. 1**3 + 2**3 + n**3
I wrote down the following code:
  
    n = input('Give the value of n.')
n = int (n)
s = ((n(n+1))/2)**2
print ('Sum equals =', s)
The output I got:
   
raceback (most recent call last):
  File "/Users/apple/Documents/tryin.py", line 15, in <module>
    s = ((n(n+1))/2)**2
TypeError: 'int' object is not callable
>>>
Would really appreciate some help guys.
:D
And any suggestions on what to practice to be better at coding and stop getting these errors will be of help.
:)
Thanks!

Hey guys! I want to write a program that finds the sum of cubed terms. i.e. 1**3 + 2**3 + n**3
I wrote down the following code:
  
    n = input('Give the value of n.')
n = int (n)
s = ((n(n+1))/2)**2
print ('Sum equals =', s)
The output I got:
   
raceback (most recent call last):
  File "/Users/apple/Documents/tryin.py", line 15, in <module>
    s = ((n(n+1))/2)**2
TypeError: 'int' object is not callable
>>>
Would really appreciate some help guys.
:D
And any suggestions on what to practice to be better at coding and stop getting these errors will be of help.
:)
Thanks!