21893760

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 256

約数和(自身を含む): 89107200

約数和(自身を除く): 67213440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 181, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 362, 378, 384, 420, 432, 448, 480, 504, 540, 543, 560, 576, 630, 640, 672, 720, 724, 756, 840, 864, 896, 905, 945, 960, 1008, 1080, 1086, 1120, 1152, 1260, 1267, 1344, 1440, 1448, 1512, 1629, 1680, 1728, 1810, 1890, 1920, 2016, 2160, 2172, 2240, 2520, 2534, 2688, 2715, 2880, 2896, 3024, 3258, 3360, 3456, 3620, 3780, 3801, 4032, 4320, 4344, 4480, 4887, 5040, 5068, 5430, 5760, 5792, 6048, 6335, 6516, 6720, 7240, 7560, 7602, 8064, 8145, 8640, 8688, 9774, 10080, 10136, 10860, 11403, 11584, 12096, 12670, 13032, 13440, 14480, 15120, 15204, 16290, 17280, 17376, 19005, 19548, 20160, 20272, 21720, 22806, 23168, 24192, 24435, 25340, 26064, 28960, 30240, 30408, 32580, 34209, 34752, 38010, 39096, 40320, 40544, 43440, 45612, 48870, 50680, 52128, 57015, 57920, 60480, 60816, 65160, 68418, 69504, 76020, 78192, 81088, 86880, 91224, 97740, 101360, 104256, 114030, 115840, 120960, 121632, 130320, 136836, 152040, 156384, 162176, 171045, 173760, 182448, 195480, 202720, 208512, 228060, 243264, 260640, 273672, 304080, 312768, 342090, 347520, 364896, 390960, 405440, 456120, 486528, 521280, 547344, 608160, 625536, 684180, 729792, 781920, 810880, 912240, 1042560, 1094688, 1216320, 1368360, 1459584, 1563840, 1824480, 2189376, 2432640, 2736720, 3127680, 3648960, 4378752, 5473440, 7297920, 10946880, 21893760]

約数ペア:

[(1, 21893760), (2, 10946880), (3, 7297920), (4, 5473440), (5, 4378752), (6, 3648960), (7, 3127680), (8, 2736720), (9, 2432640), (10, 2189376), (12, 1824480), (14, 1563840), (15, 1459584), (16, 1368360), (18, 1216320), (20, 1094688), (21, 1042560), (24, 912240), (27, 810880), (28, 781920), (30, 729792), (32, 684180), (35, 625536), (36, 608160), (40, 547344), (42, 521280), (45, 486528), (48, 456120), (54, 405440), (56, 390960), (60, 364896), (63, 347520), (64, 342090), (70, 312768), (72, 304080), (80, 273672), (84, 260640), (90, 243264), (96, 228060), (105, 208512), (108, 202720), (112, 195480), (120, 182448), (126, 173760), (128, 171045), (135, 162176), (140, 156384), (144, 152040), (160, 136836), (168, 130320), (180, 121632), (181, 120960), (189, 115840), (192, 114030), (210, 104256), (216, 101360), (224, 97740), (240, 91224), (252, 86880), (270, 81088), (280, 78192), (288, 76020), (315, 69504), (320, 68418), (336, 65160), (360, 60816), (362, 60480), (378, 57920), (384, 57015), (420, 52128), (432, 50680), (448, 48870), (480, 45612), (504, 43440), (540, 40544), (543, 40320), (560, 39096), (576, 38010), (630, 34752), (640, 34209), (672, 32580), (720, 30408), (724, 30240), (756, 28960), (840, 26064), (864, 25340), (896, 24435), (905, 24192), (945, 23168), (960, 22806), (1008, 21720), (1080, 20272), (1086, 20160), (1120, 19548), (1152, 19005), (1260, 17376), (1267, 17280), (1344, 16290), (1440, 15204), (1448, 15120), (1512, 14480), (1629, 13440), (1680, 13032), (1728, 12670), (1810, 12096), (1890, 11584), (1920, 11403), (2016, 10860), (2160, 10136), (2172, 10080), (2240, 9774), (2520, 8688), (2534, 8640), (2688, 8145), (2715, 8064), (2880, 7602), (2896, 7560), (3024, 7240), (3258, 6720), (3360, 6516), (3456, 6335), (3620, 6048), (3780, 5792), (3801, 5760), (4032, 5430), (4320, 5068), (4344, 5040), (4480, 4887)]