2,728,131

3 × 7 × 163 × 797

2,728,131 is odd and not a perfect square. Its factorization is 3 × 7 × 163 × 797 and its 16 divisors sum to 4,187,904.

Prime Factor Structure

Factorization String 3 × 7 × 163 × 797

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 4,187,904

Proper Divisor Sum 1,459,773

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #2728129 ← → #2728163

1 3 7 21 163 489 797 1,141 2,391 3,423 5,579 16,737 129,911 389,733 909,377 2,728,131

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

2,728,131 8,184,394 4,092,197 12,276,592 6,138,296 3,069,148 1,534,574 767,287 2,301,862 1,150,931 3,452,794 1,726,397 5,179,192 2,589,596 1,294,798 647,399 1,942,198 971,099 2,913,298 1,456,649 4,369,948 2,184,974 1,092,487 3,277,462 1,638,731 4,916,194 2,458,097 7,374,292 3,687,146 1,843,573 5,530,720 2,765,360 1,382,680 691,340 345,670 172,835 518,506 259,253 777,760 388,880 194,440 97,220 48,610 24,305 72,916 36,458 18,229 54,688 27,344 13,672 6,836 3,418 1,709 5,128 2,564 1,282 641 1,924 962 481