398671470729

素因数分解:

$3^4\times 7^1\times {\mathrm{703124287}}^1$

素因数の和:703124306

約数の個数: 20

約数和(自身を含む): 680624310784

約数和(自身を除く): 281952840055

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 703124287, 2109372861, 4921870009, 6328118583, 14765610027, 18984355749, 44296830081, 56953067247, 132890490243, 398671470729]

約数ペア:

[(1, 398671470729), (3, 132890490243), (7, 56953067247), (9, 44296830081), (21, 18984355749), (27, 14765610027), (63, 6328118583), (81, 4921870009), (189, 2109372861), (567, 703124287)]