20897184

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{257}}^1$

素因数の和:299

約数の個数: 144

約数和(自身を含む): 69177024

約数和(自身を除く): 48279840

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 56, 66, 77, 84, 88, 96, 112, 121, 132, 154, 168, 176, 224, 231, 242, 257, 264, 308, 336, 352, 363, 462, 484, 514, 528, 616, 672, 726, 771, 847, 924, 968, 1028, 1056, 1232, 1452, 1542, 1694, 1799, 1848, 1936, 2056, 2464, 2541, 2827, 2904, 3084, 3388, 3598, 3696, 3872, 4112, 5082, 5397, 5654, 5808, 6168, 6776, 7196, 7392, 8224, 8481, 10164, 10794, 11308, 11616, 12336, 13552, 14392, 16962, 19789, 20328, 21588, 22616, 24672, 27104, 28784, 31097, 33924, 39578, 40656, 43176, 45232, 57568, 59367, 62194, 67848, 79156, 81312, 86352, 90464, 93291, 118734, 124388, 135696, 158312, 172704, 186582, 217679, 237468, 248776, 271392, 316624, 373164, 435358, 474936, 497552, 633248, 653037, 746328, 870716, 949872, 995104, 1306074, 1492656, 1741432, 1899744, 2612148, 2985312, 3482864, 5224296, 6965728, 10448592, 20897184]

約数ペア:

[(1, 20897184), (2, 10448592), (3, 6965728), (4, 5224296), (6, 3482864), (7, 2985312), (8, 2612148), (11, 1899744), (12, 1741432), (14, 1492656), (16, 1306074), (21, 995104), (22, 949872), (24, 870716), (28, 746328), (32, 653037), (33, 633248), (42, 497552), (44, 474936), (48, 435358), (56, 373164), (66, 316624), (77, 271392), (84, 248776), (88, 237468), (96, 217679), (112, 186582), (121, 172704), (132, 158312), (154, 135696), (168, 124388), (176, 118734), (224, 93291), (231, 90464), (242, 86352), (257, 81312), (264, 79156), (308, 67848), (336, 62194), (352, 59367), (363, 57568), (462, 45232), (484, 43176), (514, 40656), (528, 39578), (616, 33924), (672, 31097), (726, 28784), (771, 27104), (847, 24672), (924, 22616), (968, 21588), (1028, 20328), (1056, 19789), (1232, 16962), (1452, 14392), (1542, 13552), (1694, 12336), (1799, 11616), (1848, 11308), (1936, 10794), (2056, 10164), (2464, 8481), (2541, 8224), (2827, 7392), (2904, 7196), (3084, 6776), (3388, 6168), (3598, 5808), (3696, 5654), (3872, 5397), (4112, 5082)]