21150976

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 55923840

約数和(自身を除く): 34772864

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 32, 37, 44, 56, 58, 64, 74, 77, 88, 112, 116, 128, 148, 154, 176, 203, 224, 232, 256, 259, 296, 308, 319, 352, 406, 407, 448, 464, 518, 592, 616, 638, 704, 812, 814, 896, 928, 1036, 1073, 1184, 1232, 1276, 1408, 1624, 1628, 1792, 1856, 2072, 2146, 2233, 2368, 2464, 2552, 2816, 2849, 3248, 3256, 3712, 4144, 4292, 4466, 4736, 4928, 5104, 5698, 6496, 6512, 7424, 7511, 8288, 8584, 8932, 9472, 9856, 10208, 11396, 11803, 12992, 13024, 15022, 16576, 17168, 17864, 19712, 20416, 22792, 23606, 25984, 26048, 30044, 33152, 34336, 35728, 40832, 45584, 47212, 51968, 52096, 60088, 66304, 68672, 71456, 81664, 82621, 91168, 94424, 104192, 120176, 137344, 142912, 165242, 182336, 188848, 240352, 274688, 285824, 330484, 364672, 377696, 480704, 571648, 660968, 729344, 755392, 961408, 1321936, 1510784, 1922816, 2643872, 3021568, 5287744, 10575488, 21150976]

約数ペア:

[(1, 21150976), (2, 10575488), (4, 5287744), (7, 3021568), (8, 2643872), (11, 1922816), (14, 1510784), (16, 1321936), (22, 961408), (28, 755392), (29, 729344), (32, 660968), (37, 571648), (44, 480704), (56, 377696), (58, 364672), (64, 330484), (74, 285824), (77, 274688), (88, 240352), (112, 188848), (116, 182336), (128, 165242), (148, 142912), (154, 137344), (176, 120176), (203, 104192), (224, 94424), (232, 91168), (256, 82621), (259, 81664), (296, 71456), (308, 68672), (319, 66304), (352, 60088), (406, 52096), (407, 51968), (448, 47212), (464, 45584), (518, 40832), (592, 35728), (616, 34336), (638, 33152), (704, 30044), (812, 26048), (814, 25984), (896, 23606), (928, 22792), (1036, 20416), (1073, 19712), (1184, 17864), (1232, 17168), (1276, 16576), (1408, 15022), (1624, 13024), (1628, 12992), (1792, 11803), (1856, 11396), (2072, 10208), (2146, 9856), (2233, 9472), (2368, 8932), (2464, 8584), (2552, 8288), (2816, 7511), (2849, 7424), (3248, 6512), (3256, 6496), (3712, 5698), (4144, 5104), (4292, 4928), (4466, 4736)]