18643338

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:129

約数の個数: 128

約数和(自身を含む): 51363840

約数和(自身を除く): 32720502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 37, 42, 43, 54, 62, 63, 74, 86, 93, 111, 126, 129, 186, 189, 217, 222, 258, 259, 279, 301, 333, 378, 387, 434, 518, 558, 602, 651, 666, 774, 777, 837, 903, 999, 1147, 1161, 1302, 1333, 1554, 1591, 1674, 1806, 1953, 1998, 2294, 2322, 2331, 2666, 2709, 3182, 3441, 3906, 3999, 4662, 4773, 5418, 5859, 6882, 6993, 7998, 8029, 8127, 9331, 9546, 10323, 11137, 11718, 11997, 13986, 14319, 16058, 16254, 18662, 20646, 22274, 23994, 24087, 27993, 28638, 30969, 33411, 35991, 42957, 48174, 49321, 55986, 61938, 66822, 71982, 72261, 83979, 85914, 98642, 100233, 144522, 147963, 167958, 200466, 216783, 251937, 295926, 300699, 345247, 433566, 443889, 503874, 601398, 690494, 887778, 1035741, 1331667, 2071482, 2663334, 3107223, 6214446, 9321669, 18643338]

約数ペア:

[(1, 18643338), (2, 9321669), (3, 6214446), (6, 3107223), (7, 2663334), (9, 2071482), (14, 1331667), (18, 1035741), (21, 887778), (27, 690494), (31, 601398), (37, 503874), (42, 443889), (43, 433566), (54, 345247), (62, 300699), (63, 295926), (74, 251937), (86, 216783), (93, 200466), (111, 167958), (126, 147963), (129, 144522), (186, 100233), (189, 98642), (217, 85914), (222, 83979), (258, 72261), (259, 71982), (279, 66822), (301, 61938), (333, 55986), (378, 49321), (387, 48174), (434, 42957), (518, 35991), (558, 33411), (602, 30969), (651, 28638), (666, 27993), (774, 24087), (777, 23994), (837, 22274), (903, 20646), (999, 18662), (1147, 16254), (1161, 16058), (1302, 14319), (1333, 13986), (1554, 11997), (1591, 11718), (1674, 11137), (1806, 10323), (1953, 9546), (1998, 9331), (2294, 8127), (2322, 8029), (2331, 7998), (2666, 6993), (2709, 6882), (3182, 5859), (3441, 5418), (3906, 4773), (3999, 4662)]