21404768

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 144

約数和(自身を含む): 57398544

約数和(自身を除く): 35993776

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 44, 49, 56, 68, 73, 77, 88, 98, 112, 119, 136, 146, 154, 176, 187, 196, 224, 238, 272, 292, 308, 352, 374, 392, 476, 511, 539, 544, 584, 616, 748, 784, 803, 833, 952, 1022, 1078, 1168, 1232, 1241, 1309, 1496, 1568, 1606, 1666, 1904, 2044, 2156, 2336, 2464, 2482, 2618, 2992, 3212, 3332, 3577, 3808, 4088, 4312, 4964, 5236, 5621, 5984, 6424, 6664, 7154, 8176, 8624, 8687, 9163, 9928, 10472, 11242, 12848, 13328, 13651, 14308, 16352, 17248, 17374, 18326, 19856, 20944, 22484, 25696, 26656, 27302, 28616, 34748, 36652, 39347, 39712, 41888, 44968, 54604, 57232, 60809, 69496, 73304, 78694, 89936, 95557, 109208, 114464, 121618, 138992, 146608, 157388, 179872, 191114, 218416, 243236, 277984, 293216, 314776, 382228, 436832, 486472, 629552, 668899, 764456, 972944, 1259104, 1337798, 1528912, 1945888, 2675596, 3057824, 5351192, 10702384, 21404768]

約数ペア:

[(1, 21404768), (2, 10702384), (4, 5351192), (7, 3057824), (8, 2675596), (11, 1945888), (14, 1528912), (16, 1337798), (17, 1259104), (22, 972944), (28, 764456), (32, 668899), (34, 629552), (44, 486472), (49, 436832), (56, 382228), (68, 314776), (73, 293216), (77, 277984), (88, 243236), (98, 218416), (112, 191114), (119, 179872), (136, 157388), (146, 146608), (154, 138992), (176, 121618), (187, 114464), (196, 109208), (224, 95557), (238, 89936), (272, 78694), (292, 73304), (308, 69496), (352, 60809), (374, 57232), (392, 54604), (476, 44968), (511, 41888), (539, 39712), (544, 39347), (584, 36652), (616, 34748), (748, 28616), (784, 27302), (803, 26656), (833, 25696), (952, 22484), (1022, 20944), (1078, 19856), (1168, 18326), (1232, 17374), (1241, 17248), (1309, 16352), (1496, 14308), (1568, 13651), (1606, 13328), (1666, 12848), (1904, 11242), (2044, 10472), (2156, 9928), (2336, 9163), (2464, 8687), (2482, 8624), (2618, 8176), (2992, 7154), (3212, 6664), (3332, 6424), (3577, 5984), (3808, 5621), (4088, 5236), (4312, 4964)]