19496071

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 24478080

約数和(自身を除く): 4982009

約数列:

[1, 7, 19, 43, 49, 133, 301, 487, 817, 931, 2107, 3409, 5719, 9253, 20941, 23863, 40033, 64771, 146587, 397879, 453397, 1026109, 2785153, 19496071]

約数ペア:

[(1, 19496071), (7, 2785153), (19, 1026109), (43, 453397), (49, 397879), (133, 146587), (301, 64771), (487, 40033), (817, 23863), (931, 20941), (2107, 9253), (3409, 5719)]