21334720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 168

約数和(自身を含む): 60807600

約数和(自身を除く): 39472880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 29, 32, 38, 40, 44, 55, 58, 64, 76, 80, 88, 95, 110, 116, 121, 145, 152, 160, 176, 190, 209, 220, 232, 242, 290, 304, 319, 320, 352, 380, 418, 440, 464, 484, 551, 580, 605, 608, 638, 704, 760, 836, 880, 928, 968, 1045, 1102, 1160, 1210, 1216, 1276, 1520, 1595, 1672, 1760, 1856, 1936, 2090, 2204, 2299, 2320, 2420, 2552, 2755, 3040, 3190, 3344, 3509, 3520, 3872, 4180, 4408, 4598, 4640, 4840, 5104, 5510, 6061, 6080, 6380, 6688, 7018, 7744, 8360, 8816, 9196, 9280, 9680, 10208, 11020, 11495, 12122, 12760, 13376, 14036, 16720, 17545, 17632, 18392, 19360, 20416, 22040, 22990, 24244, 25520, 28072, 30305, 33440, 35090, 35264, 36784, 38720, 44080, 45980, 48488, 51040, 56144, 60610, 66671, 66880, 70180, 73568, 88160, 91960, 96976, 102080, 112288, 121220, 133342, 140360, 147136, 176320, 183920, 193952, 224576, 242440, 266684, 280720, 333355, 367840, 387904, 484880, 533368, 561440, 666710, 735680, 969760, 1066736, 1122880, 1333420, 1939520, 2133472, 2666840, 4266944, 5333680, 10667360, 21334720]

約数ペア:

[(1, 21334720), (2, 10667360), (4, 5333680), (5, 4266944), (8, 2666840), (10, 2133472), (11, 1939520), (16, 1333420), (19, 1122880), (20, 1066736), (22, 969760), (29, 735680), (32, 666710), (38, 561440), (40, 533368), (44, 484880), (55, 387904), (58, 367840), (64, 333355), (76, 280720), (80, 266684), (88, 242440), (95, 224576), (110, 193952), (116, 183920), (121, 176320), (145, 147136), (152, 140360), (160, 133342), (176, 121220), (190, 112288), (209, 102080), (220, 96976), (232, 91960), (242, 88160), (290, 73568), (304, 70180), (319, 66880), (320, 66671), (352, 60610), (380, 56144), (418, 51040), (440, 48488), (464, 45980), (484, 44080), (551, 38720), (580, 36784), (605, 35264), (608, 35090), (638, 33440), (704, 30305), (760, 28072), (836, 25520), (880, 24244), (928, 22990), (968, 22040), (1045, 20416), (1102, 19360), (1160, 18392), (1210, 17632), (1216, 17545), (1276, 16720), (1520, 14036), (1595, 13376), (1672, 12760), (1760, 12122), (1856, 11495), (1936, 11020), (2090, 10208), (2204, 9680), (2299, 9280), (2320, 9196), (2420, 8816), (2552, 8360), (2755, 7744), (3040, 7018), (3190, 6688), (3344, 6380), (3509, 6080), (3520, 6061), (3872, 5510), (4180, 5104), (4408, 4840), (4598, 4640)]