21821754

素因数分解:

$2^1\times 3^1\times {\mathrm{353}}^1\times {\mathrm{10303}}^1$

素因数の和:10661

約数の個数: 16

約数和(自身を含む): 43771392

約数和(自身を除く): 21949638

約数列:

[1, 2, 3, 6, 353, 706, 1059, 2118, 10303, 20606, 30909, 61818, 3636959, 7273918, 10910877, 21821754]

約数ペア:

[(1, 21821754), (2, 10910877), (3, 7273918), (6, 3636959), (353, 61818), (706, 30909), (1059, 20606), (2118, 10303)]