21884296

素因数分解:

$2^3\times 7^1\times {\mathrm{390791}}^1$

素因数の和:390804

約数の個数: 16

約数和(自身を含む): 46895040

約数和(自身を除く): 25010744

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390791, 781582, 1563164, 2735537, 3126328, 5471074, 10942148, 21884296]

約数ペア:

[(1, 21884296), (2, 10942148), (4, 5471074), (7, 3126328), (8, 2735537), (14, 1563164), (28, 781582), (56, 390791)]