18045573

素因数分解:

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

素因数の和:127

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 14210427

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 71, 91, 133, 147, 213, 247, 273, 343, 399, 497, 637, 741, 923, 931, 1029, 1349, 1491, 1729, 1911, 2769, 2793, 3479, 4047, 4459, 5187, 6461, 6517, 9443, 10437, 12103, 13377, 17537, 19383, 19551, 24353, 28329, 36309, 45227, 52611, 66101, 73059, 84721, 122759, 135681, 198303, 254163, 316589, 368277, 462707, 859313, 949767, 1388121, 2577939, 6015191, 18045573]

約数ペア:

[(1, 18045573), (3, 6015191), (7, 2577939), (13, 1388121), (19, 949767), (21, 859313), (39, 462707), (49, 368277), (57, 316589), (71, 254163), (91, 198303), (133, 135681), (147, 122759), (213, 84721), (247, 73059), (273, 66101), (343, 52611), (399, 45227), (497, 36309), (637, 28329), (741, 24353), (923, 19551), (931, 19383), (1029, 17537), (1349, 13377), (1491, 12103), (1729, 10437), (1911, 9443), (2769, 6517), (2793, 6461), (3479, 5187), (4047, 4459)]