16719905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4093}}^1$

素因数の和:4160

約数の個数: 16

約数和(自身を含む): 21616320

約数和(自身を除く): 4896415

約数列:

[1, 5, 19, 43, 95, 215, 817, 4085, 4093, 20465, 77767, 175999, 388835, 879995, 3343981, 16719905]

約数ペア:

[(1, 16719905), (5, 3343981), (19, 879995), (43, 388835), (95, 175999), (215, 77767), (817, 20465), (4085, 4093)]