81686591

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1\times {\mathrm{1153}}^1$

素因数の和:1538

約数の個数: 16

約数和(自身を含む): 96936000

約数和(自身を除く): 15249409

約数列:

[1, 7, 29, 203, 349, 1153, 2443, 8071, 10121, 33437, 70847, 234059, 402397, 2816779, 11669513, 81686591]

約数ペア:

[(1, 81686591), (7, 11669513), (29, 2816779), (203, 402397), (349, 234059), (1153, 70847), (2443, 33437), (8071, 10121)]