21686798

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91121}}^1$

素因数の和:91147

約数の個数: 16

約数和(自身を含む): 39364704

約数和(自身を除く): 17677906

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91121, 182242, 637847, 1275694, 1549057, 3098114, 10843399, 21686798]

約数ペア:

[(1, 21686798), (2, 10843399), (7, 3098114), (14, 1549057), (17, 1275694), (34, 637847), (119, 182242), (238, 91121)]