21643432

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142391}}^1$

素因数の和:142416

約数の個数: 16

約数和(自身を含む): 42717600

約数和(自身を除く): 21074168

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142391, 284782, 569564, 1139128, 2705429, 5410858, 10821716, 21643432]

約数ペア:

[(1, 21643432), (2, 10821716), (4, 5410858), (8, 2705429), (19, 1139128), (38, 569564), (76, 284782), (152, 142391)]