21716716

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18917}}^1$

素因数の和:18969

約数の個数: 24

約数和(自身を含む): 44495136

約数和(自身を除く): 22778420

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18917, 37834, 75668, 132419, 264838, 529676, 775597, 1551194, 3102388, 5429179, 10858358, 21716716]

約数ペア:

[(1, 21716716), (2, 10858358), (4, 5429179), (7, 3102388), (14, 1551194), (28, 775597), (41, 529676), (82, 264838), (164, 132419), (287, 75668), (574, 37834), (1148, 18917)]