81988739

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{2957}}^1$

素因数の和:3214

約数の個数: 16

約数和(自身を含む): 99672768

約数和(自身を除く): 17684029

約数列:

[1, 7, 17, 119, 233, 1631, 2957, 3961, 20699, 27727, 50269, 351883, 688981, 4822867, 11712677, 81988739]

約数ペア:

[(1, 81988739), (7, 11712677), (17, 4822867), (119, 688981), (233, 351883), (1631, 50269), (2957, 27727), (3961, 20699)]