2² × 3² × 571

Prime Factor Structure

Factorization String 2^2 × 3^2 × 571

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 52,052

Proper Divisor Sum 31,496

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #20551 ← → #20563

1 2 3 4 6 9 12 18 36 571 1,142 1,713 2,284 3,426 5,139 6,852 10,278 20,556

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

20,556 10,278 5,139 15,418 7,709 23,128 11,564 5,782 2,891 8,674 4,337 13,012 6,506 3,253 9,760 4,880 2,440 1,220 610 305 916 458 229 688 344 172 86 43 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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