21447936

素因数分解:

$2^8\times 3^3\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 66225600

約数和(自身を除く): 44777664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 64, 72, 87, 96, 107, 108, 116, 128, 144, 174, 192, 214, 216, 232, 256, 261, 288, 321, 348, 384, 428, 432, 464, 522, 576, 642, 696, 768, 783, 856, 864, 928, 963, 1044, 1152, 1284, 1392, 1566, 1712, 1728, 1856, 1926, 2088, 2304, 2568, 2784, 2889, 3103, 3132, 3424, 3456, 3712, 3852, 4176, 5136, 5568, 5778, 6206, 6264, 6848, 6912, 7424, 7704, 8352, 9309, 10272, 11136, 11556, 12412, 12528, 13696, 15408, 16704, 18618, 20544, 22272, 23112, 24824, 25056, 27392, 27927, 30816, 33408, 37236, 41088, 46224, 49648, 50112, 55854, 61632, 66816, 74472, 82176, 83781, 92448, 99296, 100224, 111708, 123264, 148944, 167562, 184896, 198592, 200448, 223416, 246528, 297888, 335124, 369792, 397184, 446832, 595776, 670248, 739584, 794368, 893664, 1191552, 1340496, 1787328, 2383104, 2680992, 3574656, 5361984, 7149312, 10723968, 21447936]

約数ペア:

[(1, 21447936), (2, 10723968), (3, 7149312), (4, 5361984), (6, 3574656), (8, 2680992), (9, 2383104), (12, 1787328), (16, 1340496), (18, 1191552), (24, 893664), (27, 794368), (29, 739584), (32, 670248), (36, 595776), (48, 446832), (54, 397184), (58, 369792), (64, 335124), (72, 297888), (87, 246528), (96, 223416), (107, 200448), (108, 198592), (116, 184896), (128, 167562), (144, 148944), (174, 123264), (192, 111708), (214, 100224), (216, 99296), (232, 92448), (256, 83781), (261, 82176), (288, 74472), (321, 66816), (348, 61632), (384, 55854), (428, 50112), (432, 49648), (464, 46224), (522, 41088), (576, 37236), (642, 33408), (696, 30816), (768, 27927), (783, 27392), (856, 25056), (864, 24824), (928, 23112), (963, 22272), (1044, 20544), (1152, 18618), (1284, 16704), (1392, 15408), (1566, 13696), (1712, 12528), (1728, 12412), (1856, 11556), (1926, 11136), (2088, 10272), (2304, 9309), (2568, 8352), (2784, 7704), (2889, 7424), (3103, 6912), (3132, 6848), (3424, 6264), (3456, 6206), (3712, 5778), (3852, 5568), (4176, 5136)]