21,106,736
24 × 7 × 199 × 947
Abundant
Even
Composite
21,106,736 factors as 2^4 × 7 × 199 × 947. Its 40 positive divisors give a proper-divisor sum of 25,914,064, so this integer is abundant. The Collatz stopping time is 71 steps.
Prime Factor Structure
Factorization String
2^4 × 7 × 199 × 947
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
40
Divisor Sum (σ)
47,020,800
Proper Divisor Sum
25,914,064
Digit Sum / Digital Root
26 (Root: 8)
Radix Representation
| Decimal | 21106736 |
| Binary | 1010000100001000000110000 (25 bits) |
| Octal | 0o120410060 |
| Hexadecimal | 0x1421030 |
Divisor Catalog (40)
Collatz Trajectory (71 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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