20199789729

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{669377}}^1$

素因数の和:669869

約数の個数: 24

約数和(自身を含む): 33415349760

約数和(自身を除く): 13215560031

約数列:

[1, 3, 7, 9, 21, 63, 479, 1437, 3353, 4311, 10059, 30177, 669377, 2008131, 4685639, 6024393, 14056917, 42170751, 320631583, 961894749, 2244421081, 2885684247, 6733263243, 20199789729]

約数ペア:

[(1, 20199789729), (3, 6733263243), (7, 2885684247), (9, 2244421081), (21, 961894749), (63, 320631583), (479, 42170751), (1437, 14056917), (3353, 6024393), (4311, 4685639), (10059, 2008131), (30177, 669377)]