18947047

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3313}}^1$

素因数の和:3382

約数の個数: 16

約数和(自身を含む): 23330560

約数和(自身を除く): 4383513

約数列:

[1, 7, 19, 43, 133, 301, 817, 3313, 5719, 23191, 62947, 142459, 440629, 997213, 2706721, 18947047]

約数ペア:

[(1, 18947047), (7, 2706721), (19, 997213), (43, 440629), (133, 142459), (301, 62947), (817, 23191), (3313, 5719)]