31278411

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1579}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 47324160

約数和(自身を除く): 16045749

約数列:

[1, 3, 9, 31, 71, 93, 213, 279, 639, 1579, 2201, 4737, 6603, 14211, 19809, 48949, 112109, 146847, 336327, 440541, 1008981, 3475379, 10426137, 31278411]

約数ペア:

[(1, 31278411), (3, 10426137), (9, 3475379), (31, 1008981), (71, 440541), (93, 336327), (213, 146847), (279, 112109), (639, 48949), (1579, 19809), (2201, 14211), (4737, 6603)]