20989864

素因数分解:

$2^3\times 7^1\times {\mathrm{374819}}^1$

素因数の和:374832

約数の個数: 16

約数和(自身を含む): 44978400

約数和(自身を除く): 23988536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 374819, 749638, 1499276, 2623733, 2998552, 5247466, 10494932, 20989864]

約数ペア:

[(1, 20989864), (2, 10494932), (4, 5247466), (7, 2998552), (8, 2623733), (14, 1499276), (28, 749638), (56, 374819)]