31878189

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4729}}^1$

素因数の和:4849

約数の個数: 24

約数和(自身を含む): 53127360

約数和(自身を除く): 21249171

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 4729, 6741, 14187, 33103, 42561, 99309, 297927, 506003, 1518009, 3542021, 4554027, 10626063, 31878189]

約数ペア:

[(1, 31878189), (3, 10626063), (7, 4554027), (9, 3542021), (21, 1518009), (63, 506003), (107, 297927), (321, 99309), (749, 42561), (963, 33103), (2247, 14187), (4729, 6741)]