20818186

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2753}}^1$

素因数の和:2973

約数の個数: 16

約数和(自身を含む): 33048000

約数和(自身を除く): 12229814

約数列:

[1, 2, 19, 38, 199, 398, 2753, 3781, 5506, 7562, 52307, 104614, 547847, 1095694, 10409093, 20818186]

約数ペア:

[(1, 20818186), (2, 10409093), (19, 1095694), (38, 547847), (199, 104614), (398, 52307), (2753, 7562), (3781, 5506)]