55131391

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{20143}}^1$

素因数の和:20190

約数の個数: 16

約数和(自身を含む): 69617664

約数和(自身を除く): 14486273

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 20143, 141001, 342431, 463289, 2397017, 3243023, 7875913, 55131391]

約数ペア:

[(1, 55131391), (7, 7875913), (17, 3243023), (23, 2397017), (119, 463289), (161, 342431), (391, 141001), (2737, 20143)]