Pages that link to "Item:Q759051"
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The following pages link to On the numbers of the form \(\sigma(n)-n\) und \(n-\varphi(n)\). (Q759051):
Displaying 13 items.
- On some friends of the sociable numbers (Q633271) (← links)
- On integers \(n\) for which \(\sigma (2n + 1) \geq \sigma (2n)\) (Q784272) (← links)
- On numbers not of the form \(n-\omega(n)\) (Q812805) (← links)
- On the densities of some subsets of integers (Q930754) (← links)
- On positive integers \(n\) with \(\sigma_l(2n+1)<\sigma_l(2n)\) (Q2166170) (← links)
- Some problems of Erdős on the sum-of-divisors function (Q2809289) (← links)
- DIVISOR‐SUM FIBERS (Q3176198) (← links)
- On sigma‐phi numbers (Q4435537) (← links)
- (Q4936089) (← links)
- Sums of proper divisors follow the Erdős–Kac law (Q5060343) (← links)
- Variant of a theorem of Erdős on the sum-of-proper-divisors function (Q5418493) (← links)
- Numerical and Statistical Analysis of Aliquot Sequences (Q5857712) (← links)
- Sums of proper divisors with missing digits (Q6611635) (← links)
