19903689

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{547}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 31117632

約数和(自身を除く): 11213943

約数列:

[1, 3, 9, 13, 39, 117, 311, 547, 933, 1641, 2799, 4043, 4923, 7111, 12129, 21333, 36387, 63999, 170117, 510351, 1531053, 2211521, 6634563, 19903689]

約数ペア:

[(1, 19903689), (3, 6634563), (9, 2211521), (13, 1531053), (39, 510351), (117, 170117), (311, 63999), (547, 36387), (933, 21333), (1641, 12129), (2799, 7111), (4043, 4923)]