21194880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:131

約数の個数: 256

約数和(自身を含む): 82252800

約数和(自身を除く): 61057920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 83, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 152, 160, 166, 168, 190, 192, 210, 224, 228, 240, 249, 266, 280, 285, 304, 320, 332, 336, 380, 384, 399, 415, 420, 448, 456, 480, 498, 532, 560, 570, 581, 608, 640, 664, 665, 672, 760, 798, 830, 840, 896, 912, 960, 996, 1064, 1120, 1140, 1162, 1216, 1245, 1328, 1330, 1344, 1520, 1577, 1596, 1660, 1680, 1743, 1824, 1920, 1992, 1995, 2128, 2240, 2280, 2324, 2432, 2490, 2656, 2660, 2688, 2905, 3040, 3154, 3192, 3320, 3360, 3486, 3648, 3984, 3990, 4256, 4480, 4560, 4648, 4731, 4980, 5312, 5320, 5810, 6080, 6308, 6384, 6640, 6720, 6972, 7296, 7885, 7968, 7980, 8512, 8715, 9120, 9296, 9462, 9960, 10624, 10640, 11039, 11620, 12160, 12616, 12768, 13280, 13440, 13944, 15770, 15936, 15960, 17024, 17430, 18240, 18592, 18924, 19920, 21280, 22078, 23240, 23655, 25232, 25536, 26560, 27888, 31540, 31872, 31920, 33117, 34860, 36480, 37184, 37848, 39840, 42560, 44156, 46480, 47310, 50464, 51072, 53120, 55195, 55776, 63080, 63840, 66234, 69720, 74368, 75696, 79680, 85120, 88312, 92960, 94620, 100928, 110390, 111552, 126160, 127680, 132468, 139440, 151392, 159360, 165585, 176624, 185920, 189240, 201856, 220780, 223104, 252320, 255360, 264936, 278880, 302784, 331170, 353248, 371840, 378480, 441560, 504640, 529872, 557760, 605568, 662340, 706496, 756960, 883120, 1009280, 1059744, 1115520, 1324680, 1412992, 1513920, 1766240, 2119488, 2649360, 3027840, 3532480, 4238976, 5298720, 7064960, 10597440, 21194880]

約数ペア:

[(1, 21194880), (2, 10597440), (3, 7064960), (4, 5298720), (5, 4238976), (6, 3532480), (7, 3027840), (8, 2649360), (10, 2119488), (12, 1766240), (14, 1513920), (15, 1412992), (16, 1324680), (19, 1115520), (20, 1059744), (21, 1009280), (24, 883120), (28, 756960), (30, 706496), (32, 662340), (35, 605568), (38, 557760), (40, 529872), (42, 504640), (48, 441560), (56, 378480), (57, 371840), (60, 353248), (64, 331170), (70, 302784), (76, 278880), (80, 264936), (83, 255360), (84, 252320), (95, 223104), (96, 220780), (105, 201856), (112, 189240), (114, 185920), (120, 176624), (128, 165585), (133, 159360), (140, 151392), (152, 139440), (160, 132468), (166, 127680), (168, 126160), (190, 111552), (192, 110390), (210, 100928), (224, 94620), (228, 92960), (240, 88312), (249, 85120), (266, 79680), (280, 75696), (285, 74368), (304, 69720), (320, 66234), (332, 63840), (336, 63080), (380, 55776), (384, 55195), (399, 53120), (415, 51072), (420, 50464), (448, 47310), (456, 46480), (480, 44156), (498, 42560), (532, 39840), (560, 37848), (570, 37184), (581, 36480), (608, 34860), (640, 33117), (664, 31920), (665, 31872), (672, 31540), (760, 27888), (798, 26560), (830, 25536), (840, 25232), (896, 23655), (912, 23240), (960, 22078), (996, 21280), (1064, 19920), (1120, 18924), (1140, 18592), (1162, 18240), (1216, 17430), (1245, 17024), (1328, 15960), (1330, 15936), (1344, 15770), (1520, 13944), (1577, 13440), (1596, 13280), (1660, 12768), (1680, 12616), (1743, 12160), (1824, 11620), (1920, 11039), (1992, 10640), (1995, 10624), (2128, 9960), (2240, 9462), (2280, 9296), (2324, 9120), (2432, 8715), (2490, 8512), (2656, 7980), (2660, 7968), (2688, 7885), (2905, 7296), (3040, 6972), (3154, 6720), (3192, 6640), (3320, 6384), (3360, 6308), (3486, 6080), (3648, 5810), (3984, 5320), (3990, 5312), (4256, 4980), (4480, 4731), (4560, 4648)]