1389804591

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{219871}}^1$

素因数の和:219931

約数の個数: 24

約数和(自身を含む): 2205755904

約数和(自身を除く): 815951313

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 219871, 659613, 1539097, 4617291, 9454453, 10773679, 28363359, 32321037, 66181171, 198543513, 463268197, 1389804591]

約数ペア:

[(1, 1389804591), (3, 463268197), (7, 198543513), (21, 66181171), (43, 32321037), (49, 28363359), (129, 10773679), (147, 9454453), (301, 4617291), (903, 1539097), (2107, 659613), (6321, 219871)]