18238864

素因数分解:

$2^4\times 7^1\times {\mathrm{162847}}^1$

素因数の和:162862

約数の個数: 20

約数和(自身を含む): 40386304

約数和(自身を除く): 22147440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 162847, 325694, 651388, 1139929, 1302776, 2279858, 2605552, 4559716, 9119432, 18238864]

約数ペア:

[(1, 18238864), (2, 9119432), (4, 4559716), (7, 2605552), (8, 2279858), (14, 1302776), (16, 1139929), (28, 651388), (56, 325694), (112, 162847)]