The factors of 26 are 1, 2, 13. And if you add them together (1+2+13) the answer is 16 which is less than 26 so it is an deficient number.
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∙ 12y agoabundant
deficient
It is deficient.
it is abundant
abundant
deficient
13 is deficient.
It is deficient.
perfect
36 is abundant.
It's deficient
abundant