21001786910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 256

約数和(自身を含む): 47029248000

約数和(自身を除く): 26027461090

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 47, 59, 65, 85, 94, 115, 118, 130, 149, 170, 221, 230, 235, 295, 298, 299, 391, 442, 470, 590, 598, 611, 745, 767, 782, 799, 1003, 1081, 1105, 1222, 1357, 1490, 1495, 1534, 1598, 1937, 1955, 2006, 2162, 2210, 2533, 2714, 2773, 2990, 3055, 3427, 3835, 3874, 3910, 3995, 5015, 5066, 5083, 5405, 5546, 6110, 6785, 6854, 7003, 7670, 7990, 8791, 9685, 10030, 10166, 10387, 10810, 12665, 13039, 13570, 13865, 14006, 14053, 17135, 17582, 17641, 18377, 19370, 20774, 23069, 25330, 25415, 26078, 27730, 28106, 32929, 34270, 35015, 35282, 36049, 36754, 43955, 44551, 46138, 47141, 50830, 51935, 58259, 63779, 65195, 65858, 70030, 70265, 72098, 87910, 88205, 89102, 91039, 91885, 94282, 103870, 114283, 115345, 116518, 119051, 127558, 130390, 140530, 149447, 161069, 164645, 176410, 180245, 182078, 183770, 202193, 222755, 228566, 230690, 235705, 238102, 238901, 291295, 298894, 299897, 318895, 322138, 329290, 360490, 404386, 413177, 445510, 455195, 471410, 477802, 571415, 582590, 595255, 599794, 612833, 637790, 747235, 757367, 805345, 826354, 829127, 910390, 1010965, 1084243, 1142830, 1190510, 1194505, 1225666, 1494470, 1499485, 1514734, 1547663, 1610690, 1658254, 1942811, 2021930, 2065885, 2093897, 2168486, 2389010, 2628509, 2738173, 2998970, 3064165, 3095326, 3437281, 3786835, 3885622, 4131770, 4145635, 4187794, 5257018, 5371301, 5421215, 5476346, 6128330, 6874562, 7024009, 7573670, 7738315, 8291270, 9503071, 9714055, 10469485, 10742602, 10842430, 13142545, 13690865, 14048018, 14095159, 15476630, 17186405, 19006142, 19428110, 20938970, 26285090, 26856505, 27381730, 28190318, 34372810, 35120045, 35596249, 44684653, 47515355, 53713010, 70240090, 70475795, 71192498, 89369306, 91312117, 95030710, 123539923, 140951590, 161552207, 177981245, 182624234, 223423265, 247079846, 323104414, 355962490, 446846530, 456560585, 617699615, 807761035, 913121170, 1235399230, 1615522070, 2100178691, 4200357382, 10500893455, 21001786910]

約数ペア:

[(1, 21001786910), (2, 10500893455), (5, 4200357382), (10, 2100178691), (13, 1615522070), (17, 1235399230), (23, 913121170), (26, 807761035), (34, 617699615), (46, 456560585), (47, 446846530), (59, 355962490), (65, 323104414), (85, 247079846), (94, 223423265), (115, 182624234), (118, 177981245), (130, 161552207), (149, 140951590), (170, 123539923), (221, 95030710), (230, 91312117), (235, 89369306), (295, 71192498), (298, 70475795), (299, 70240090), (391, 53713010), (442, 47515355), (470, 44684653), (590, 35596249), (598, 35120045), (611, 34372810), (745, 28190318), (767, 27381730), (782, 26856505), (799, 26285090), (1003, 20938970), (1081, 19428110), (1105, 19006142), (1222, 17186405), (1357, 15476630), (1490, 14095159), (1495, 14048018), (1534, 13690865), (1598, 13142545), (1937, 10842430), (1955, 10742602), (2006, 10469485), (2162, 9714055), (2210, 9503071), (2533, 8291270), (2714, 7738315), (2773, 7573670), (2990, 7024009), (3055, 6874562), (3427, 6128330), (3835, 5476346), (3874, 5421215), (3910, 5371301), (3995, 5257018), (5015, 4187794), (5066, 4145635), (5083, 4131770), (5405, 3885622), (5546, 3786835), (6110, 3437281), (6785, 3095326), (6854, 3064165), (7003, 2998970), (7670, 2738173), (7990, 2628509), (8791, 2389010), (9685, 2168486), (10030, 2093897), (10166, 2065885), (10387, 2021930), (10810, 1942811), (12665, 1658254), (13039, 1610690), (13570, 1547663), (13865, 1514734), (14006, 1499485), (14053, 1494470), (17135, 1225666), (17582, 1194505), (17641, 1190510), (18377, 1142830), (19370, 1084243), (20774, 1010965), (23069, 910390), (25330, 829127), (25415, 826354), (26078, 805345), (27730, 757367), (28106, 747235), (32929, 637790), (34270, 612833), (35015, 599794), (35282, 595255), (36049, 582590), (36754, 571415), (43955, 477802), (44551, 471410), (46138, 455195), (47141, 445510), (50830, 413177), (51935, 404386), (58259, 360490), (63779, 329290), (65195, 322138), (65858, 318895), (70030, 299897), (70265, 298894), (72098, 291295), (87910, 238901), (88205, 238102), (89102, 235705), (91039, 230690), (91885, 228566), (94282, 222755), (103870, 202193), (114283, 183770), (115345, 182078), (116518, 180245), (119051, 176410), (127558, 164645), (130390, 161069), (140530, 149447)]