19872147

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1997}}^1$

素因数の和:2138

約数の個数: 16

約数和(自身を含む): 27620352

約数和(自身を除く): 7748205

約数列:

[1, 3, 31, 93, 107, 321, 1997, 3317, 5991, 9951, 61907, 185721, 213679, 641037, 6624049, 19872147]

約数ペア:

[(1, 19872147), (3, 6624049), (31, 641037), (93, 213679), (107, 185721), (321, 61907), (1997, 9951), (3317, 5991)]