19678456

素因数分解:

$2^3\times 7^1\times {\mathrm{351401}}^1$

素因数の和:351414

約数の個数: 16

約数和(自身を含む): 42168240

約数和(自身を除く): 22489784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 351401, 702802, 1405604, 2459807, 2811208, 4919614, 9839228, 19678456]

約数ペア:

[(1, 19678456), (2, 9839228), (4, 4919614), (7, 2811208), (8, 2459807), (14, 1405604), (28, 702802), (56, 351401)]