21161906

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{3727}}^1$

素因数の和:3913

約数の個数: 16

約数和(自身を含む): 33820416

約数和(自身を除く): 12658510

約数列:

[1, 2, 17, 34, 167, 334, 2839, 3727, 5678, 7454, 63359, 126718, 622409, 1244818, 10580953, 21161906]

約数ペア:

[(1, 21161906), (2, 10580953), (17, 1244818), (34, 622409), (167, 126718), (334, 63359), (2839, 7454), (3727, 5678)]