2² × 7² × 107

Prime Factor Structure

Factorization String 2^2 × 7^2 × 107

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 43,092

Proper Divisor Sum 22,120

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #20963 ← → #20981

1 2 4 7 14 28 49 98 107 196 214 428 749 1,498 2,996 5,243 10,486 20,972

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

20,972 10,486 5,243 15,730 7,865 23,596 11,798 5,899 17,698 8,849 26,548 13,274 6,637 19,912 9,956 4,978 2,489 7,468 3,734 1,867 5,602 2,801 8,404 4,202 2,101 6,304 3,152 1,576 788 394 197 592 296 148 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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