1388892987

素因数分解:

$3^6\times {\mathrm{397}}^1\times {\mathrm{4799}}^1$

素因数の和:5214

約数の個数: 28

約数和(自身を含む): 2088067200

約数和(自身を除く): 699174213

約数列:

[1, 3, 9, 27, 81, 243, 397, 729, 1191, 3573, 4799, 10719, 14397, 32157, 43191, 96471, 129573, 289413, 388719, 1166157, 1905203, 3498471, 5715609, 17146827, 51440481, 154321443, 462964329, 1388892987]

約数ペア:

[(1, 1388892987), (3, 462964329), (9, 154321443), (27, 51440481), (81, 17146827), (243, 5715609), (397, 3498471), (729, 1905203), (1191, 1166157), (3573, 388719), (4799, 289413), (10719, 129573), (14397, 96471), (32157, 43191)]