18429740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131641}}^1$

素因数の和:131657

約数の個数: 24

約数和(自身を含む): 44231712

約数和(自身を除く): 25801972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131641, 263282, 526564, 658205, 921487, 1316410, 1842974, 2632820, 3685948, 4607435, 9214870, 18429740]

約数ペア:

[(1, 18429740), (2, 9214870), (4, 4607435), (5, 3685948), (7, 2632820), (10, 1842974), (14, 1316410), (20, 921487), (28, 658205), (35, 526564), (70, 263282), (140, 131641)]