Is 1221 an abundant number and what is its abundance?

Is 1221 an abundant number?

Here we will explain and calculate if 1221 is an abundant number and its abundance if applicable.

1221 is an abundant number if the sum of its proper divisors is greater than 1221.

The sum of its proper divisors is calculated as follows: 1 + 3 + 11 + 33 + 37 + 111 + 407 = 603.

603 is not greater than 1221. Therefore, 1221 is not an abundant number.

The abundance of 1221 is the sum of its proper divisors minus 1221. Thus, the abundance of 1221 is 603 - 1221 = no abundance

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