21000916544

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:797

約数の個数: 224

約数和(自身を含む): 48811403520

約数和(自身を除く): 27810486976

約数列:

[1, 2, 4, 8, 16, 17, 23, 29, 32, 34, 43, 46, 58, 64, 68, 86, 92, 116, 136, 172, 184, 232, 272, 344, 368, 391, 464, 493, 544, 667, 673, 688, 731, 736, 782, 928, 986, 989, 1088, 1247, 1334, 1346, 1376, 1462, 1472, 1564, 1856, 1972, 1978, 2494, 2668, 2692, 2752, 2924, 3128, 3944, 3956, 4988, 5336, 5384, 5848, 6256, 7888, 7912, 9976, 10672, 10768, 11339, 11441, 11696, 12512, 15479, 15776, 15824, 16813, 19517, 19952, 21199, 21344, 21536, 22678, 22882, 23392, 25024, 28681, 28939, 30958, 31552, 31648, 33626, 39034, 39904, 42398, 42688, 43072, 45356, 45764, 46784, 57362, 57878, 61916, 63296, 67252, 78068, 79808, 84796, 90712, 91528, 114724, 115756, 123832, 134504, 156136, 169592, 181424, 183056, 229448, 231512, 247664, 263143, 269008, 312272, 331789, 339184, 362848, 366112, 448891, 458896, 463024, 487577, 491963, 495328, 526286, 538016, 624544, 663578, 665597, 678368, 725696, 732224, 839231, 897782, 917792, 926048, 975154, 983926, 990656, 1052572, 1076032, 1249088, 1327156, 1331194, 1356736, 1678462, 1795564, 1835584, 1852096, 1950308, 1967852, 2105144, 2654312, 2662388, 3356924, 3591128, 3900616, 3935704, 4210288, 5308624, 5324776, 6713848, 7182256, 7631147, 7801232, 7871408, 8420576, 10617248, 10649552, 11315149, 13427696, 14266927, 14364512, 15262294, 15602464, 15742816, 16841152, 19302313, 21234496, 21299104, 22630298, 26855392, 28533854, 28729024, 30524588, 31204928, 31485632, 38604626, 42598208, 45260596, 53710784, 57067708, 61049176, 77209252, 90521192, 114135416, 122098352, 154418504, 181042384, 228270832, 244196704, 308837008, 328139321, 362084768, 456541664, 488393408, 617674016, 656278642, 724169536, 913083328, 1235348032, 1312557284, 2625114568, 5250229136, 10500458272, 21000916544]

約数ペア:

[(1, 21000916544), (2, 10500458272), (4, 5250229136), (8, 2625114568), (16, 1312557284), (17, 1235348032), (23, 913083328), (29, 724169536), (32, 656278642), (34, 617674016), (43, 488393408), (46, 456541664), (58, 362084768), (64, 328139321), (68, 308837008), (86, 244196704), (92, 228270832), (116, 181042384), (136, 154418504), (172, 122098352), (184, 114135416), (232, 90521192), (272, 77209252), (344, 61049176), (368, 57067708), (391, 53710784), (464, 45260596), (493, 42598208), (544, 38604626), (667, 31485632), (673, 31204928), (688, 30524588), (731, 28729024), (736, 28533854), (782, 26855392), (928, 22630298), (986, 21299104), (989, 21234496), (1088, 19302313), (1247, 16841152), (1334, 15742816), (1346, 15602464), (1376, 15262294), (1462, 14364512), (1472, 14266927), (1564, 13427696), (1856, 11315149), (1972, 10649552), (1978, 10617248), (2494, 8420576), (2668, 7871408), (2692, 7801232), (2752, 7631147), (2924, 7182256), (3128, 6713848), (3944, 5324776), (3956, 5308624), (4988, 4210288), (5336, 3935704), (5384, 3900616), (5848, 3591128), (6256, 3356924), (7888, 2662388), (7912, 2654312), (9976, 2105144), (10672, 1967852), (10768, 1950308), (11339, 1852096), (11441, 1835584), (11696, 1795564), (12512, 1678462), (15479, 1356736), (15776, 1331194), (15824, 1327156), (16813, 1249088), (19517, 1076032), (19952, 1052572), (21199, 990656), (21344, 983926), (21536, 975154), (22678, 926048), (22882, 917792), (23392, 897782), (25024, 839231), (28681, 732224), (28939, 725696), (30958, 678368), (31552, 665597), (31648, 663578), (33626, 624544), (39034, 538016), (39904, 526286), (42398, 495328), (42688, 491963), (43072, 487577), (45356, 463024), (45764, 458896), (46784, 448891), (57362, 366112), (57878, 362848), (61916, 339184), (63296, 331789), (67252, 312272), (78068, 269008), (79808, 263143), (84796, 247664), (90712, 231512), (91528, 229448), (114724, 183056), (115756, 181424), (123832, 169592), (134504, 156136)]