21311472

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:96

約数の個数: 240

約数和(自身を含む): 74807712

約数和(自身を除く): 53496240

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 17, 21, 24, 26, 28, 34, 39, 41, 42, 48, 49, 51, 52, 56, 68, 78, 82, 84, 91, 98, 102, 104, 112, 119, 123, 136, 147, 156, 164, 168, 182, 196, 204, 208, 221, 238, 246, 272, 273, 287, 294, 312, 328, 336, 357, 364, 392, 408, 442, 476, 492, 533, 546, 574, 588, 624, 637, 656, 663, 697, 714, 728, 784, 816, 833, 861, 884, 952, 984, 1066, 1092, 1148, 1176, 1274, 1326, 1394, 1428, 1456, 1547, 1599, 1666, 1722, 1768, 1904, 1911, 1968, 2009, 2091, 2132, 2184, 2296, 2352, 2499, 2548, 2652, 2788, 2856, 3094, 3198, 3332, 3444, 3536, 3731, 3822, 4018, 4182, 4264, 4368, 4592, 4641, 4879, 4998, 5096, 5304, 5576, 5712, 6027, 6188, 6396, 6664, 6888, 7462, 7644, 8036, 8364, 8528, 9061, 9282, 9758, 9996, 10192, 10608, 10829, 11152, 11193, 12054, 12376, 12792, 13328, 13776, 14637, 14924, 15288, 16072, 16728, 18122, 18564, 19516, 19992, 21658, 22386, 24108, 24752, 25584, 26117, 27183, 29274, 29848, 30576, 32144, 32487, 33456, 34153, 36244, 37128, 39032, 39984, 43316, 44772, 48216, 52234, 54366, 58548, 59696, 63427, 64974, 68306, 72488, 74256, 78064, 78351, 86632, 89544, 96432, 102459, 104468, 108732, 117096, 126854, 129948, 136612, 144976, 156702, 173264, 179088, 190281, 204918, 208936, 217464, 234192, 253708, 259896, 273224, 313404, 380562, 409836, 417872, 434928, 443989, 507416, 519792, 546448, 626808, 761124, 819672, 887978, 1014832, 1253616, 1331967, 1522248, 1639344, 1775956, 2663934, 3044496, 3551912, 5327868, 7103824, 10655736, 21311472]

約数ペア:

[(1, 21311472), (2, 10655736), (3, 7103824), (4, 5327868), (6, 3551912), (7, 3044496), (8, 2663934), (12, 1775956), (13, 1639344), (14, 1522248), (16, 1331967), (17, 1253616), (21, 1014832), (24, 887978), (26, 819672), (28, 761124), (34, 626808), (39, 546448), (41, 519792), (42, 507416), (48, 443989), (49, 434928), (51, 417872), (52, 409836), (56, 380562), (68, 313404), (78, 273224), (82, 259896), (84, 253708), (91, 234192), (98, 217464), (102, 208936), (104, 204918), (112, 190281), (119, 179088), (123, 173264), (136, 156702), (147, 144976), (156, 136612), (164, 129948), (168, 126854), (182, 117096), (196, 108732), (204, 104468), (208, 102459), (221, 96432), (238, 89544), (246, 86632), (272, 78351), (273, 78064), (287, 74256), (294, 72488), (312, 68306), (328, 64974), (336, 63427), (357, 59696), (364, 58548), (392, 54366), (408, 52234), (442, 48216), (476, 44772), (492, 43316), (533, 39984), (546, 39032), (574, 37128), (588, 36244), (624, 34153), (637, 33456), (656, 32487), (663, 32144), (697, 30576), (714, 29848), (728, 29274), (784, 27183), (816, 26117), (833, 25584), (861, 24752), (884, 24108), (952, 22386), (984, 21658), (1066, 19992), (1092, 19516), (1148, 18564), (1176, 18122), (1274, 16728), (1326, 16072), (1394, 15288), (1428, 14924), (1456, 14637), (1547, 13776), (1599, 13328), (1666, 12792), (1722, 12376), (1768, 12054), (1904, 11193), (1911, 11152), (1968, 10829), (2009, 10608), (2091, 10192), (2132, 9996), (2184, 9758), (2296, 9282), (2352, 9061), (2499, 8528), (2548, 8364), (2652, 8036), (2788, 7644), (2856, 7462), (3094, 6888), (3198, 6664), (3332, 6396), (3444, 6188), (3536, 6027), (3731, 5712), (3822, 5576), (4018, 5304), (4182, 5096), (4264, 4998), (4368, 4879), (4592, 4641)]