21086667

素因数分解:

$3^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{773}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 34935264

約数和(自身を除く): 13848597

約数列:

[1, 3, 7, 9, 21, 63, 433, 773, 1299, 2319, 3031, 3897, 5411, 6957, 9093, 16233, 27279, 48699, 334709, 1004127, 2342963, 3012381, 7028889, 21086667]

約数ペア:

[(1, 21086667), (3, 7028889), (7, 3012381), (9, 2342963), (21, 1004127), (63, 334709), (433, 48699), (773, 27279), (1299, 16233), (2319, 9093), (3031, 6957), (3897, 5411)]