2021890985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{67139}}^1$

素因数の和:67480

約数の個数: 16

約数和(自身を含む): 2562062400

約数和(自身を除く): 540171415

約数列:

[1, 5, 19, 95, 317, 1585, 6023, 30115, 67139, 335695, 1275641, 6378205, 21283063, 106415315, 404378197, 2021890985]

約数ペア:

[(1, 2021890985), (5, 404378197), (19, 106415315), (95, 21283063), (317, 6378205), (1585, 1275641), (6023, 335695), (30115, 67139)]