21926961

素因数分解:

$3^2\times 7^3\times {\mathrm{7103}}^1$

素因数の和:7130

約数の個数: 24

約数和(自身を含む): 36940800

約数和(自身を除く): 15013839

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 7103, 21309, 49721, 63927, 149163, 348047, 447489, 1044141, 2436329, 3132423, 7308987, 21926961]

約数ペア:

[(1, 21926961), (3, 7308987), (7, 3132423), (9, 2436329), (21, 1044141), (49, 447489), (63, 348047), (147, 149163), (343, 63927), (441, 49721), (1029, 21309), (3087, 7103)]