668842563

素因数分解:

$3^1\times {\mathrm{53}}^2\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 917076160

約数和(自身を除く): 248233597

約数列:

[1, 3, 53, 139, 159, 417, 571, 1713, 2809, 7367, 8427, 22101, 30263, 79369, 90789, 238107, 390451, 1171353, 1603939, 4206557, 4811817, 12619671, 222947521, 668842563]

約数ペア:

[(1, 668842563), (3, 222947521), (53, 12619671), (139, 4811817), (159, 4206557), (417, 1603939), (571, 1171353), (1713, 390451), (2809, 238107), (7367, 90789), (8427, 79369), (22101, 30263)]