20811088

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15671}}^1$

素因数の和:15762

約数の個数: 20

約数和(自身を含む): 40809888

約数和(自身を除く): 19998800

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15671, 31342, 62684, 125368, 250736, 1300693, 2601386, 5202772, 10405544, 20811088]

約数ペア:

[(1, 20811088), (2, 10405544), (4, 5202772), (8, 2601386), (16, 1300693), (83, 250736), (166, 125368), (332, 62684), (664, 31342), (1328, 15671)]