19907421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1123}}^1$

素因数の和:1456

約数の個数: 16

約数和(自身を含む): 28055040

約数和(自身を除く): 8147619

約数列:

[1, 3, 19, 57, 311, 933, 1123, 3369, 5909, 17727, 21337, 64011, 349253, 1047759, 6635807, 19907421]

約数ペア:

[(1, 19907421), (3, 6635807), (19, 1047759), (57, 349253), (311, 64011), (933, 21337), (1123, 17727), (3369, 5909)]