26,639

17 × 1567

26,639 factors as 17 × 1567. Its 4 positive divisors give a proper-divisor sum of 1,585, so this integer is deficient. The Collatz stopping time is 170 steps.

Prime Factor Structure

Factorization String 17 × 1567

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 28,224

Proper Divisor Sum 1,585

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #26633 ← → #26641

Radix Representation

Decimal	26639
Binary	110100000001111 (15 bits)
Octal	0o64017
Hexadecimal	0x680F

Divisor Catalog (4)

1 17 1,567 26,639

Collatz Trajectory (170 steps to reach 1)

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

26,639 79,918 39,959 119,878 59,939 179,818 89,909 269,728 134,864 67,432 33,716 16,858 8,429 25,288 12,644 6,322 3,161 9,484 4,742 2,371 7,114 3,557 10,672 5,336 2,668 1,334 667 2,002 1,001 3,004 1,502 751 2,254 1,127 3,382 1,691 5,074 2,537 7,612 3,806 1,903 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067 12,202 6,101

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