21491568

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 200

約数和(自身を含む): 74899968

約数和(自身を除く): 53408400

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 27, 28, 36, 42, 46, 48, 54, 56, 63, 69, 72, 81, 84, 92, 103, 108, 112, 126, 138, 144, 161, 162, 168, 184, 189, 206, 207, 216, 252, 276, 309, 322, 324, 336, 368, 378, 412, 414, 432, 483, 504, 552, 567, 618, 621, 644, 648, 721, 756, 824, 828, 927, 966, 1008, 1104, 1134, 1236, 1242, 1288, 1296, 1442, 1449, 1512, 1648, 1656, 1854, 1863, 1932, 2163, 2268, 2369, 2472, 2484, 2576, 2781, 2884, 2898, 3024, 3312, 3708, 3726, 3864, 4326, 4347, 4536, 4738, 4944, 4968, 5562, 5768, 5796, 6489, 7107, 7416, 7452, 7728, 8343, 8652, 8694, 9072, 9476, 9936, 11124, 11536, 11592, 12978, 13041, 14214, 14832, 14904, 16583, 16686, 17304, 17388, 18952, 19467, 21321, 22248, 23184, 25956, 26082, 28428, 29808, 33166, 33372, 34608, 34776, 37904, 38934, 42642, 44496, 49749, 51912, 52164, 56856, 58401, 63963, 66332, 66744, 69552, 77868, 85284, 99498, 103824, 104328, 113712, 116802, 127926, 132664, 133488, 149247, 155736, 170568, 191889, 198996, 208656, 233604, 255852, 265328, 298494, 311472, 341136, 383778, 397992, 447741, 467208, 511704, 596988, 767556, 795984, 895482, 934416, 1023408, 1193976, 1343223, 1535112, 1790964, 2387952, 2686446, 3070224, 3581928, 5372892, 7163856, 10745784, 21491568]

約数ペア:

[(1, 21491568), (2, 10745784), (3, 7163856), (4, 5372892), (6, 3581928), (7, 3070224), (8, 2686446), (9, 2387952), (12, 1790964), (14, 1535112), (16, 1343223), (18, 1193976), (21, 1023408), (23, 934416), (24, 895482), (27, 795984), (28, 767556), (36, 596988), (42, 511704), (46, 467208), (48, 447741), (54, 397992), (56, 383778), (63, 341136), (69, 311472), (72, 298494), (81, 265328), (84, 255852), (92, 233604), (103, 208656), (108, 198996), (112, 191889), (126, 170568), (138, 155736), (144, 149247), (161, 133488), (162, 132664), (168, 127926), (184, 116802), (189, 113712), (206, 104328), (207, 103824), (216, 99498), (252, 85284), (276, 77868), (309, 69552), (322, 66744), (324, 66332), (336, 63963), (368, 58401), (378, 56856), (412, 52164), (414, 51912), (432, 49749), (483, 44496), (504, 42642), (552, 38934), (567, 37904), (618, 34776), (621, 34608), (644, 33372), (648, 33166), (721, 29808), (756, 28428), (824, 26082), (828, 25956), (927, 23184), (966, 22248), (1008, 21321), (1104, 19467), (1134, 18952), (1236, 17388), (1242, 17304), (1288, 16686), (1296, 16583), (1442, 14904), (1449, 14832), (1512, 14214), (1648, 13041), (1656, 12978), (1854, 11592), (1863, 11536), (1932, 11124), (2163, 9936), (2268, 9476), (2369, 9072), (2472, 8694), (2484, 8652), (2576, 8343), (2781, 7728), (2884, 7452), (2898, 7416), (3024, 7107), (3312, 6489), (3708, 5796), (3726, 5768), (3864, 5562), (4326, 4968), (4347, 4944), (4536, 4738)]