2577939

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 4596480

約数和(自身を除く): 2018541

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 71, 91, 133, 147, 213, 247, 273, 399, 497, 637, 741, 923, 931, 1349, 1491, 1729, 1911, 2769, 2793, 3479, 4047, 5187, 6461, 9443, 10437, 12103, 17537, 19383, 28329, 36309, 45227, 52611, 66101, 122759, 135681, 198303, 368277, 859313, 2577939]

約数ペア:

[(1, 2577939), (3, 859313), (7, 368277), (13, 198303), (19, 135681), (21, 122759), (39, 66101), (49, 52611), (57, 45227), (71, 36309), (91, 28329), (133, 19383), (147, 17537), (213, 12103), (247, 10437), (273, 9443), (399, 6461), (497, 5187), (637, 4047), (741, 3479), (923, 2793), (931, 2769), (1349, 1911), (1491, 1729)]