90873517

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{20639}}^1$

素因数の和:20700

約数の個数: 16

約数和(自身を含む): 112942080

約数和(自身を除く): 22068563

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 20639, 144473, 350863, 763643, 2456041, 5345501, 12981931, 90873517]

約数ペア:

[(1, 90873517), (7, 12981931), (17, 5345501), (37, 2456041), (119, 763643), (259, 350863), (629, 144473), (4403, 20639)]