21,346

2 × 13 × 821

Prime Factor Structure

Factorization String 2 × 13 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 34,524

Proper Divisor Sum 13,178

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #21341 ← → #21347

1 2 13 26 821 1,642 10,673 21,346

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

21,346 10,673 32,020 16,010 8,005 24,016 12,008 6,004 3,002 1,501 4,504 2,252 1,126 563 1,690 845 2,536 1,268 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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