21921207

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8627}}^1$

素因数の和:8659

約数の個数: 24

約数和(自身を含む): 36720768

約数和(自身を除く): 14799561

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8627, 25881, 60389, 94897, 181167, 284691, 664279, 1043867, 1992837, 3131601, 7307069, 21921207]

約数ペア:

[(1, 21921207), (3, 7307069), (7, 3131601), (11, 1992837), (21, 1043867), (33, 664279), (77, 284691), (121, 181167), (231, 94897), (363, 60389), (847, 25881), (2541, 8627)]