Natural numbers N are called pseudoperfect if they satisfy the following formula:

where `p`

is a divisor of `N`

and a prime number.

The known pseudoperfect numbers are

2,

6,

42,

1806,

47058,

2214502422,

52495396602,

8490421583559688410706771261086

News and FAQ for the Geocache Wizard

Natural numbers N are called pseudoperfect if they satisfy the following formula:

where `p`

is a divisor of `N`

and a prime number.

The known pseudoperfect numbers are

2,

6,

42,

1806,

47058,

2214502422,

52495396602,

8490421583559688410706771261086