16989259

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 19869696

約数和(自身を除く): 2880437

約数列:

[1, 7, 97, 131, 191, 679, 917, 1337, 12707, 18527, 25021, 88949, 129689, 175147, 2427037, 16989259]

約数ペア:

[(1, 16989259), (7, 2427037), (97, 175147), (131, 129689), (191, 88949), (679, 25021), (917, 18527), (1337, 12707)]