21699368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142759}}^1$

素因数の和:142784

約数の個数: 16

約数和(自身を含む): 42828000

約数和(自身を除く): 21128632

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142759, 285518, 571036, 1142072, 2712421, 5424842, 10849684, 21699368]

約数ペア:

[(1, 21699368), (2, 10849684), (4, 5424842), (8, 2712421), (19, 1142072), (38, 571036), (76, 285518), (152, 142759)]