Meaning of DIVISOR in English
A quantity that evenly divides another quantity.
Unless otherwise stated, use of this term implies that the quantities involved are integers. (For non-integers, the more general term factor may be more appropriate.)
Example: 3 is a divisor of 15. Example: 3 is not a divisor of 14.
FOLDOC computer English dictionary. Английский словарь по компьютерам FOLDOC. 2012