19901432

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{57853}}^1$

素因数の和:57902

約数の個数: 16

約数和(自身を含む): 38183640

約数和(自身を除く): 18282208

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 57853, 115706, 231412, 462824, 2487679, 4975358, 9950716, 19901432]

約数ペア:

[(1, 19901432), (2, 9950716), (4, 4975358), (8, 2487679), (43, 462824), (86, 231412), (172, 115706), (344, 57853)]