Is 1991 an abundant number and what is its abundance?

Is 1991 an abundant number?

Here we will explain and calculate if 1991 is an abundant number and its abundance if applicable.

1991 is an abundant number if the sum of its proper divisors is greater than 1991.

The sum of its proper divisors is calculated as follows: 1 + 11 + 181 = 193.

193 is not greater than 1991. Therefore, 1991 is not an abundant number.

The abundance of 1991 is the sum of its proper divisors minus 1991. Thus, the abundance of 1991 is 193 - 1991 = no abundance

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