20570054

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1213}}^1$

素因数の和:1415

約数の個数: 16

約数和(自身を含む): 31612560

約数和(自身を除く): 11042506

約数列:

[1, 2, 61, 122, 139, 278, 1213, 2426, 8479, 16958, 73993, 147986, 168607, 337214, 10285027, 20570054]

約数ペア:

[(1, 20570054), (2, 10285027), (61, 337214), (122, 168607), (139, 147986), (278, 73993), (1213, 16958), (2426, 8479)]