21215040

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:86

約数の個数: 336

約数和(自身を含む): 87562944

約数和(自身を除く): 66347904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 41, 42, 44, 48, 49, 55, 56, 60, 64, 66, 70, 77, 80, 82, 84, 88, 96, 98, 105, 110, 112, 120, 123, 132, 140, 147, 154, 160, 164, 165, 168, 176, 192, 196, 205, 210, 220, 224, 231, 240, 245, 246, 264, 280, 287, 294, 308, 320, 328, 330, 336, 352, 385, 392, 410, 420, 440, 448, 451, 462, 480, 490, 492, 528, 539, 560, 574, 588, 615, 616, 656, 660, 672, 704, 735, 770, 784, 820, 840, 861, 880, 902, 924, 960, 980, 984, 1056, 1078, 1120, 1148, 1155, 1176, 1230, 1232, 1312, 1320, 1344, 1353, 1435, 1470, 1540, 1568, 1617, 1640, 1680, 1722, 1760, 1804, 1848, 1960, 1968, 2009, 2112, 2156, 2240, 2255, 2296, 2310, 2352, 2460, 2464, 2624, 2640, 2695, 2706, 2870, 2940, 3080, 3136, 3157, 3234, 3280, 3360, 3444, 3520, 3608, 3696, 3920, 3936, 4018, 4305, 4312, 4510, 4592, 4620, 4704, 4920, 4928, 5280, 5390, 5412, 5740, 5880, 6027, 6160, 6314, 6468, 6560, 6720, 6765, 6888, 7216, 7392, 7840, 7872, 8036, 8085, 8610, 8624, 9020, 9184, 9240, 9408, 9471, 9840, 10045, 10560, 10780, 10824, 11480, 11760, 12054, 12320, 12628, 12936, 13120, 13530, 13776, 14432, 14784, 15680, 15785, 16072, 16170, 17220, 17248, 18040, 18368, 18480, 18942, 19680, 20090, 21560, 21648, 22099, 22960, 23520, 24108, 24640, 25256, 25872, 27060, 27552, 28864, 30135, 31570, 32144, 32340, 34440, 34496, 36080, 36960, 37884, 39360, 40180, 43120, 43296, 44198, 45920, 47040, 47355, 48216, 50512, 51744, 54120, 55104, 60270, 63140, 64288, 64680, 66297, 68880, 72160, 73920, 75768, 80360, 86240, 86592, 88396, 91840, 94710, 96432, 101024, 103488, 108240, 110495, 120540, 126280, 128576, 129360, 132594, 137760, 144320, 151536, 160720, 172480, 176792, 189420, 192864, 202048, 216480, 220990, 241080, 252560, 258720, 265188, 275520, 303072, 321440, 331485, 353584, 378840, 385728, 432960, 441980, 482160, 505120, 517440, 530376, 606144, 642880, 662970, 707168, 757680, 883960, 964320, 1010240, 1060752, 1325940, 1414336, 1515360, 1767920, 1928640, 2121504, 2651880, 3030720, 3535840, 4243008, 5303760, 7071680, 10607520, 21215040]

約数ペア:

[(1, 21215040), (2, 10607520), (3, 7071680), (4, 5303760), (5, 4243008), (6, 3535840), (7, 3030720), (8, 2651880), (10, 2121504), (11, 1928640), (12, 1767920), (14, 1515360), (15, 1414336), (16, 1325940), (20, 1060752), (21, 1010240), (22, 964320), (24, 883960), (28, 757680), (30, 707168), (32, 662970), (33, 642880), (35, 606144), (40, 530376), (41, 517440), (42, 505120), (44, 482160), (48, 441980), (49, 432960), (55, 385728), (56, 378840), (60, 353584), (64, 331485), (66, 321440), (70, 303072), (77, 275520), (80, 265188), (82, 258720), (84, 252560), (88, 241080), (96, 220990), (98, 216480), (105, 202048), (110, 192864), (112, 189420), (120, 176792), (123, 172480), (132, 160720), (140, 151536), (147, 144320), (154, 137760), (160, 132594), (164, 129360), (165, 128576), (168, 126280), (176, 120540), (192, 110495), (196, 108240), (205, 103488), (210, 101024), (220, 96432), (224, 94710), (231, 91840), (240, 88396), (245, 86592), (246, 86240), (264, 80360), (280, 75768), (287, 73920), (294, 72160), (308, 68880), (320, 66297), (328, 64680), (330, 64288), (336, 63140), (352, 60270), (385, 55104), (392, 54120), (410, 51744), (420, 50512), (440, 48216), (448, 47355), (451, 47040), (462, 45920), (480, 44198), (490, 43296), (492, 43120), (528, 40180), (539, 39360), (560, 37884), (574, 36960), (588, 36080), (615, 34496), (616, 34440), (656, 32340), (660, 32144), (672, 31570), (704, 30135), (735, 28864), (770, 27552), (784, 27060), (820, 25872), (840, 25256), (861, 24640), (880, 24108), (902, 23520), (924, 22960), (960, 22099), (980, 21648), (984, 21560), (1056, 20090), (1078, 19680), (1120, 18942), (1148, 18480), (1155, 18368), (1176, 18040), (1230, 17248), (1232, 17220), (1312, 16170), (1320, 16072), (1344, 15785), (1353, 15680), (1435, 14784), (1470, 14432), (1540, 13776), (1568, 13530), (1617, 13120), (1640, 12936), (1680, 12628), (1722, 12320), (1760, 12054), (1804, 11760), (1848, 11480), (1960, 10824), (1968, 10780), (2009, 10560), (2112, 10045), (2156, 9840), (2240, 9471), (2255, 9408), (2296, 9240), (2310, 9184), (2352, 9020), (2460, 8624), (2464, 8610), (2624, 8085), (2640, 8036), (2695, 7872), (2706, 7840), (2870, 7392), (2940, 7216), (3080, 6888), (3136, 6765), (3157, 6720), (3234, 6560), (3280, 6468), (3360, 6314), (3444, 6160), (3520, 6027), (3608, 5880), (3696, 5740), (3920, 5412), (3936, 5390), (4018, 5280), (4305, 4928), (4312, 4920), (4510, 4704), (4592, 4620)]