219886961

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 266048640

約数和(自身を除く): 46161679

約数列:

[1, 7, 29, 49, 203, 271, 571, 1421, 1897, 3997, 7859, 13279, 16559, 27979, 55013, 115913, 154741, 385091, 811391, 1083187, 4487489, 7582309, 31412423, 219886961]

約数ペア:

[(1, 219886961), (7, 31412423), (29, 7582309), (49, 4487489), (203, 1083187), (271, 811391), (571, 385091), (1421, 154741), (1897, 115913), (3997, 55013), (7859, 27979), (13279, 16559)]