20877986

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{727}}^1$

素因数の和:985

約数の個数: 16

約数和(自身を含む): 31921344

約数和(自身を除く): 11043358

約数列:

[1, 2, 83, 166, 173, 346, 727, 1454, 14359, 28718, 60341, 120682, 125771, 251542, 10438993, 20877986]

約数ペア:

[(1, 20877986), (2, 10438993), (83, 251542), (166, 125771), (173, 120682), (346, 60341), (727, 28718), (1454, 14359)]