261401644

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{217111}}^1$

素因数の和:217165

約数の個数: 24

約数和(自身を含む): 534963968

約数和(自身を除く): 273562324

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 217111, 434222, 868444, 1519777, 3039554, 6079108, 9335773, 18671546, 37343092, 65350411, 130700822, 261401644]

約数ペア:

[(1, 261401644), (2, 130700822), (4, 65350411), (7, 37343092), (14, 18671546), (28, 9335773), (43, 6079108), (86, 3039554), (172, 1519777), (301, 868444), (602, 434222), (1204, 217111)]