21118608

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 180

約数和(自身を含む): 71393868

約数和(自身を除く): 50275260

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 41, 42, 48, 49, 56, 63, 72, 73, 82, 84, 98, 112, 123, 126, 144, 146, 147, 164, 168, 196, 219, 246, 252, 287, 292, 294, 328, 336, 369, 392, 438, 441, 492, 504, 511, 574, 584, 588, 656, 657, 738, 784, 861, 876, 882, 984, 1008, 1022, 1148, 1168, 1176, 1314, 1476, 1533, 1722, 1752, 1764, 1968, 2009, 2044, 2296, 2352, 2583, 2628, 2952, 2993, 3066, 3444, 3504, 3528, 3577, 4018, 4088, 4592, 4599, 5166, 5256, 5904, 5986, 6027, 6132, 6888, 7056, 7154, 8036, 8176, 8979, 9198, 10332, 10512, 10731, 11972, 12054, 12264, 13776, 14308, 16072, 17958, 18081, 18396, 20664, 20951, 21462, 23944, 24108, 24528, 26937, 28616, 32144, 32193, 35916, 36162, 36792, 41328, 41902, 42924, 47888, 48216, 53874, 57232, 62853, 64386, 71832, 72324, 73584, 83804, 85848, 96432, 107748, 125706, 128772, 143664, 144648, 146657, 167608, 171696, 188559, 215496, 251412, 257544, 289296, 293314, 335216, 377118, 430992, 439971, 502824, 515088, 586628, 754236, 879942, 1005648, 1173256, 1319913, 1508472, 1759884, 2346512, 2639826, 3016944, 3519768, 5279652, 7039536, 10559304, 21118608]

約数ペア:

[(1, 21118608), (2, 10559304), (3, 7039536), (4, 5279652), (6, 3519768), (7, 3016944), (8, 2639826), (9, 2346512), (12, 1759884), (14, 1508472), (16, 1319913), (18, 1173256), (21, 1005648), (24, 879942), (28, 754236), (36, 586628), (41, 515088), (42, 502824), (48, 439971), (49, 430992), (56, 377118), (63, 335216), (72, 293314), (73, 289296), (82, 257544), (84, 251412), (98, 215496), (112, 188559), (123, 171696), (126, 167608), (144, 146657), (146, 144648), (147, 143664), (164, 128772), (168, 125706), (196, 107748), (219, 96432), (246, 85848), (252, 83804), (287, 73584), (292, 72324), (294, 71832), (328, 64386), (336, 62853), (369, 57232), (392, 53874), (438, 48216), (441, 47888), (492, 42924), (504, 41902), (511, 41328), (574, 36792), (584, 36162), (588, 35916), (656, 32193), (657, 32144), (738, 28616), (784, 26937), (861, 24528), (876, 24108), (882, 23944), (984, 21462), (1008, 20951), (1022, 20664), (1148, 18396), (1168, 18081), (1176, 17958), (1314, 16072), (1476, 14308), (1533, 13776), (1722, 12264), (1752, 12054), (1764, 11972), (1968, 10731), (2009, 10512), (2044, 10332), (2296, 9198), (2352, 8979), (2583, 8176), (2628, 8036), (2952, 7154), (2993, 7056), (3066, 6888), (3444, 6132), (3504, 6027), (3528, 5986), (3577, 5904), (4018, 5256), (4088, 5166), (4592, 4599)]