3957681

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 7022400

約数和(自身を除く): 3064719

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 109, 133, 147, 247, 273, 327, 399, 637, 741, 763, 931, 1417, 1729, 1911, 2071, 2289, 2793, 4251, 5187, 5341, 6213, 9919, 12103, 14497, 16023, 26923, 29757, 36309, 43491, 69433, 80769, 101479, 188461, 208299, 304437, 565383, 1319227, 3957681]

約数ペア:

[(1, 3957681), (3, 1319227), (7, 565383), (13, 304437), (19, 208299), (21, 188461), (39, 101479), (49, 80769), (57, 69433), (91, 43491), (109, 36309), (133, 29757), (147, 26923), (247, 16023), (273, 14497), (327, 12103), (399, 9919), (637, 6213), (741, 5341), (763, 5187), (931, 4251), (1417, 2793), (1729, 2289), (1911, 2071)]