19639949

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 23316480

約数和(自身を除く): 3676531

約数列:

[1, 7, 43, 71, 301, 497, 919, 3053, 6433, 21371, 39517, 65249, 276619, 456743, 2805707, 19639949]

約数ペア:

[(1, 19639949), (7, 2805707), (43, 456743), (71, 276619), (301, 65249), (497, 39517), (919, 21371), (3053, 6433)]