20681512

素因数分解:

$2^3\times {\mathrm{523}}^1\times {\mathrm{4943}}^1$

素因数の和:5472

約数の個数: 16

約数和(自身を含む): 38859840

約数和(自身を除く): 18178328

約数列:

[1, 2, 4, 8, 523, 1046, 2092, 4184, 4943, 9886, 19772, 39544, 2585189, 5170378, 10340756, 20681512]

約数ペア:

[(1, 20681512), (2, 10340756), (4, 5170378), (8, 2585189), (523, 39544), (1046, 19772), (2092, 9886), (4184, 4943)]