20187659428

素因数分解:

$2^2\times {\mathrm{257}}^1\times {\mathrm{19637801}}^1$

素因数の和:19638062

約数の個数: 12

約数和(自身を含む): 35465870412

約数和(自身を除く): 15278210984

約数列:

[1, 2, 4, 257, 514, 1028, 19637801, 39275602, 78551204, 5046914857, 10093829714, 20187659428]

約数ペア:

[(1, 20187659428), (2, 10093829714), (4, 5046914857), (257, 78551204), (514, 39275602), (1028, 19637801)]