20921

Prime Factor Structure

Factorization String 20921

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 20,922

Proper Divisor Sum 1

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #20903 ← → #20929

1 20,921

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

20,921 62,764 31,382 15,691 47,074 23,537 70,612 35,306 17,653 52,960 26,480 13,240 6,620 3,310 1,655 4,966 2,483 7,450 3,725 11,176 5,588 2,794 1,397 4,192 2,096 1,048 524 262 131 394 197 592 296 148 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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