20961864

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 192

約数和(自身を含む): 74880000

約数和(自身を除く): 53918136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 19, 21, 22, 24, 28, 33, 36, 38, 42, 44, 56, 57, 63, 66, 72, 76, 77, 84, 88, 99, 114, 126, 132, 133, 152, 154, 168, 171, 198, 199, 209, 228, 231, 252, 264, 266, 308, 342, 396, 398, 399, 418, 456, 462, 504, 532, 597, 616, 627, 684, 693, 792, 796, 798, 836, 924, 1064, 1194, 1197, 1254, 1368, 1386, 1393, 1463, 1592, 1596, 1672, 1791, 1848, 1881, 2189, 2388, 2394, 2508, 2772, 2786, 2926, 3192, 3582, 3762, 3781, 4179, 4378, 4389, 4776, 4788, 5016, 5544, 5572, 5852, 6567, 7164, 7524, 7562, 8358, 8756, 8778, 9576, 11144, 11343, 11704, 12537, 13134, 13167, 14328, 15048, 15124, 15323, 16716, 17512, 17556, 19701, 22686, 25074, 26268, 26334, 26467, 30248, 30646, 33432, 34029, 35112, 39402, 41591, 45372, 45969, 50148, 52536, 52668, 52934, 61292, 68058, 78804, 79401, 83182, 90744, 91938, 100296, 105336, 105868, 122584, 124773, 136116, 137907, 157608, 158802, 166364, 183876, 211736, 238203, 249546, 272232, 275814, 291137, 317604, 332728, 367752, 374319, 476406, 499092, 551628, 582274, 635208, 748638, 873411, 952812, 998184, 1103256, 1164548, 1497276, 1746822, 1905624, 2329096, 2620233, 2994552, 3493644, 5240466, 6987288, 10480932, 20961864]

約数ペア:

[(1, 20961864), (2, 10480932), (3, 6987288), (4, 5240466), (6, 3493644), (7, 2994552), (8, 2620233), (9, 2329096), (11, 1905624), (12, 1746822), (14, 1497276), (18, 1164548), (19, 1103256), (21, 998184), (22, 952812), (24, 873411), (28, 748638), (33, 635208), (36, 582274), (38, 551628), (42, 499092), (44, 476406), (56, 374319), (57, 367752), (63, 332728), (66, 317604), (72, 291137), (76, 275814), (77, 272232), (84, 249546), (88, 238203), (99, 211736), (114, 183876), (126, 166364), (132, 158802), (133, 157608), (152, 137907), (154, 136116), (168, 124773), (171, 122584), (198, 105868), (199, 105336), (209, 100296), (228, 91938), (231, 90744), (252, 83182), (264, 79401), (266, 78804), (308, 68058), (342, 61292), (396, 52934), (398, 52668), (399, 52536), (418, 50148), (456, 45969), (462, 45372), (504, 41591), (532, 39402), (597, 35112), (616, 34029), (627, 33432), (684, 30646), (693, 30248), (792, 26467), (796, 26334), (798, 26268), (836, 25074), (924, 22686), (1064, 19701), (1194, 17556), (1197, 17512), (1254, 16716), (1368, 15323), (1386, 15124), (1393, 15048), (1463, 14328), (1592, 13167), (1596, 13134), (1672, 12537), (1791, 11704), (1848, 11343), (1881, 11144), (2189, 9576), (2388, 8778), (2394, 8756), (2508, 8358), (2772, 7562), (2786, 7524), (2926, 7164), (3192, 6567), (3582, 5852), (3762, 5572), (3781, 5544), (4179, 5016), (4378, 4788), (4389, 4776)]