20199665157

素因数分解:

$3^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{484091}}^1$

素因数の和:486088

約数の個数: 16

約数和(自身を含む): 30795996672

約数和(自身を除く): 10596331515

約数列:

[1, 3, 7, 21, 1987, 5961, 13909, 41727, 484091, 1452273, 3388637, 10165911, 961888817, 2885666451, 6733221719, 20199665157]

約数ペア:

[(1, 20199665157), (3, 6733221719), (7, 2885666451), (21, 961888817), (1987, 10165911), (5961, 3388637), (13909, 1452273), (41727, 484091)]