20921472

素因数分解:

$2^7\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 71285760

約数和(自身を除く): 50364288

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 32, 33, 36, 39, 44, 48, 52, 64, 66, 72, 78, 88, 96, 99, 104, 117, 127, 128, 132, 143, 144, 156, 176, 192, 198, 208, 234, 254, 264, 286, 288, 312, 352, 381, 384, 396, 416, 429, 468, 508, 528, 572, 576, 624, 704, 762, 792, 832, 858, 936, 1016, 1056, 1143, 1144, 1152, 1248, 1287, 1397, 1408, 1524, 1584, 1651, 1664, 1716, 1872, 2032, 2112, 2286, 2288, 2496, 2574, 2794, 3048, 3168, 3302, 3432, 3744, 4064, 4191, 4224, 4572, 4576, 4953, 4992, 5148, 5588, 6096, 6336, 6604, 6864, 7488, 8128, 8382, 9144, 9152, 9906, 10296, 11176, 12192, 12573, 12672, 13208, 13728, 14859, 14976, 16256, 16764, 18161, 18288, 18304, 19812, 20592, 22352, 24384, 25146, 26416, 27456, 29718, 33528, 36322, 36576, 39624, 41184, 44704, 48768, 50292, 52832, 54483, 54912, 59436, 67056, 72644, 73152, 79248, 82368, 89408, 100584, 105664, 108966, 118872, 134112, 145288, 146304, 158496, 163449, 164736, 178816, 201168, 211328, 217932, 237744, 268224, 290576, 316992, 326898, 402336, 435864, 475488, 536448, 581152, 633984, 653796, 804672, 871728, 950976, 1162304, 1307592, 1609344, 1743456, 1901952, 2324608, 2615184, 3486912, 5230368, 6973824, 10460736, 20921472]

約数ペア:

[(1, 20921472), (2, 10460736), (3, 6973824), (4, 5230368), (6, 3486912), (8, 2615184), (9, 2324608), (11, 1901952), (12, 1743456), (13, 1609344), (16, 1307592), (18, 1162304), (22, 950976), (24, 871728), (26, 804672), (32, 653796), (33, 633984), (36, 581152), (39, 536448), (44, 475488), (48, 435864), (52, 402336), (64, 326898), (66, 316992), (72, 290576), (78, 268224), (88, 237744), (96, 217932), (99, 211328), (104, 201168), (117, 178816), (127, 164736), (128, 163449), (132, 158496), (143, 146304), (144, 145288), (156, 134112), (176, 118872), (192, 108966), (198, 105664), (208, 100584), (234, 89408), (254, 82368), (264, 79248), (286, 73152), (288, 72644), (312, 67056), (352, 59436), (381, 54912), (384, 54483), (396, 52832), (416, 50292), (429, 48768), (468, 44704), (508, 41184), (528, 39624), (572, 36576), (576, 36322), (624, 33528), (704, 29718), (762, 27456), (792, 26416), (832, 25146), (858, 24384), (936, 22352), (1016, 20592), (1056, 19812), (1143, 18304), (1144, 18288), (1152, 18161), (1248, 16764), (1287, 16256), (1397, 14976), (1408, 14859), (1524, 13728), (1584, 13208), (1651, 12672), (1664, 12573), (1716, 12192), (1872, 11176), (2032, 10296), (2112, 9906), (2286, 9152), (2288, 9144), (2496, 8382), (2574, 8128), (2794, 7488), (3048, 6864), (3168, 6604), (3302, 6336), (3432, 6096), (3744, 5588), (4064, 5148), (4191, 4992), (4224, 4953), (4572, 4576)]