18987682

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31541}}^1$

素因数の和:31593

約数の個数: 16

約数和(自身を含む): 33308352

約数和(自身を除く): 14320670

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 31541, 63082, 220787, 441574, 1356263, 2712526, 9493841, 18987682]

約数ペア:

[(1, 18987682), (2, 9493841), (7, 2712526), (14, 1356263), (43, 441574), (86, 220787), (301, 63082), (602, 31541)]