28379481

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 42594048

約数和(自身を除く): 14214567

約数列:

[1, 3, 13, 37, 39, 71, 111, 213, 277, 481, 831, 923, 1443, 2627, 2769, 3601, 7881, 10249, 10803, 19667, 30747, 34151, 59001, 102453, 133237, 255671, 399711, 727679, 767013, 2183037, 9459827, 28379481]

約数ペア:

[(1, 28379481), (3, 9459827), (13, 2183037), (37, 767013), (39, 727679), (71, 399711), (111, 255671), (213, 133237), (277, 102453), (481, 59001), (831, 34151), (923, 30747), (1443, 19667), (2627, 10803), (2769, 10249), (3601, 7881)]