19578081

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1607}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 27168768

約数和(自身を除く): 7590687

約数列:

[1, 3, 31, 93, 131, 393, 1607, 4061, 4821, 12183, 49817, 149451, 210517, 631551, 6526027, 19578081]

約数ペア:

[(1, 19578081), (3, 6526027), (31, 631551), (93, 210517), (131, 149451), (393, 49817), (1607, 12183), (4061, 4821)]