18503667

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 17300493

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 91, 117, 119, 153, 189, 221, 273, 351, 357, 443, 459, 663, 819, 1071, 1329, 1547, 1989, 2457, 3101, 3213, 3987, 4641, 5759, 5967, 7531, 9303, 11961, 13923, 17277, 22593, 27909, 40313, 41769, 51831, 52717, 67779, 83727, 97903, 120939, 155493, 158151, 203337, 293709, 362817, 474453, 685321, 881127, 1088451, 1423359, 2055963, 2643381, 6167889, 18503667]

約数ペア:

[(1, 18503667), (3, 6167889), (7, 2643381), (9, 2055963), (13, 1423359), (17, 1088451), (21, 881127), (27, 685321), (39, 474453), (51, 362817), (63, 293709), (91, 203337), (117, 158151), (119, 155493), (153, 120939), (189, 97903), (221, 83727), (273, 67779), (351, 52717), (357, 51831), (443, 41769), (459, 40313), (663, 27909), (819, 22593), (1071, 17277), (1329, 13923), (1547, 11961), (1989, 9303), (2457, 7531), (3101, 5967), (3213, 5759), (3987, 4641)]