19221559

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3361}}^1$

素因数の和:3430

約数の個数: 16

約数和(自身を含む): 23668480

約数和(自身を除く): 4446921

約数列:

[1, 7, 19, 43, 133, 301, 817, 3361, 5719, 23527, 63859, 144523, 447013, 1011661, 2745937, 19221559]

約数ペア:

[(1, 19221559), (7, 2745937), (19, 1011661), (43, 447013), (133, 144523), (301, 63859), (817, 23527), (3361, 5719)]