20990026

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{9781}}^1$

素因数の和:9849

約数の個数: 16

約数和(自身を含む): 33454440

約数和(自身を除く): 12464414

約数列:

[1, 2, 29, 37, 58, 74, 1073, 2146, 9781, 19562, 283649, 361897, 567298, 723794, 10495013, 20990026]

約数ペア:

[(1, 20990026), (2, 10495013), (29, 723794), (37, 567298), (58, 361897), (74, 283649), (1073, 19562), (2146, 9781)]