21805854

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17903}}^1$

素因数の和:17944

約数の個数: 32

約数和(自身を含む): 51563520

約数和(自身を除く): 29757666

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17903, 35806, 53709, 107418, 125321, 250642, 375963, 519187, 751926, 1038374, 1557561, 3115122, 3634309, 7268618, 10902927, 21805854]

約数ペア:

[(1, 21805854), (2, 10902927), (3, 7268618), (6, 3634309), (7, 3115122), (14, 1557561), (21, 1038374), (29, 751926), (42, 519187), (58, 375963), (87, 250642), (174, 125321), (203, 107418), (406, 53709), (609, 35806), (1218, 17903)]