19904696

素因数分解:

$2^3\times 7^1\times {\mathrm{355441}}^1$

素因数の和:355454

約数の個数: 16

約数和(自身を含む): 42653040

約数和(自身を除く): 22748344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355441, 710882, 1421764, 2488087, 2843528, 4976174, 9952348, 19904696]

約数ペア:

[(1, 19904696), (2, 9952348), (4, 4976174), (7, 2843528), (8, 2488087), (14, 1421764), (28, 710882), (56, 355441)]