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A075659
Sum of prime divisors (A008472) is a power of an integer with exponent greater than 1.
1
14, 15, 28, 39, 45, 46, 55, 56, 66, 75, 87, 92, 94, 98, 112, 117, 132, 135, 155, 158, 183, 184, 186, 188, 196, 198, 203, 224, 225, 247, 255, 261, 264, 275, 285, 290, 291, 295, 299, 316, 322, 323, 334, 351, 354, 357, 368, 372, 375, 376, 392, 396, 405, 418, 429
OFFSET
1,1
LINKS
PROG
(PARI) isok(n) = {my(f=factor(n)); ispower(sum(k=1, #f~, f[k, 1])); } \\ Michel Marcus, Sep 09 2017
CROSSREFS
Sequence in context: A207036 A087430 A085900 * A022104 A041398 A041919
KEYWORD
nonn
AUTHOR
Floor van Lamoen, Sep 23 2002
EXTENSIONS
More terms from Matthew Conroy, Oct 15 2002
Offset corrected by Michel Marcus, Sep 09 2017
STATUS
approved