19997604508

素因数分解:

$2^2\times 7^1\times {\mathrm{714200161}}^1$

素因数の和:714200172

約数の個数: 12

約数和(自身を含む): 39995209072

約数和(自身を除く): 19997604564

約数列:

[1, 2, 4, 7, 14, 28, 714200161, 1428400322, 2856800644, 4999401127, 9998802254, 19997604508]

約数ペア:

[(1, 19997604508), (2, 9998802254), (4, 4999401127), (7, 2856800644), (14, 1428400322), (28, 714200161)]