21191112

素因数分解:

$2^3\times 3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 64800000

約数和(自身を除く): 43608888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 27, 29, 34, 36, 51, 54, 58, 68, 72, 87, 102, 108, 116, 136, 153, 174, 199, 204, 216, 232, 261, 306, 348, 398, 408, 459, 493, 522, 597, 612, 696, 783, 796, 918, 986, 1044, 1194, 1224, 1479, 1566, 1592, 1791, 1836, 1972, 2088, 2388, 2958, 3132, 3383, 3582, 3672, 3944, 4437, 4776, 5373, 5771, 5916, 6264, 6766, 7164, 8874, 10149, 10746, 11542, 11832, 13311, 13532, 14328, 17313, 17748, 20298, 21492, 23084, 26622, 27064, 30447, 34626, 35496, 40596, 42984, 46168, 51939, 53244, 60894, 69252, 81192, 91341, 98107, 103878, 106488, 121788, 138504, 155817, 182682, 196214, 207756, 243576, 294321, 311634, 365364, 392428, 415512, 588642, 623268, 730728, 784856, 882963, 1177284, 1246536, 1765926, 2354568, 2648889, 3531852, 5297778, 7063704, 10595556, 21191112]

約数ペア:

[(1, 21191112), (2, 10595556), (3, 7063704), (4, 5297778), (6, 3531852), (8, 2648889), (9, 2354568), (12, 1765926), (17, 1246536), (18, 1177284), (24, 882963), (27, 784856), (29, 730728), (34, 623268), (36, 588642), (51, 415512), (54, 392428), (58, 365364), (68, 311634), (72, 294321), (87, 243576), (102, 207756), (108, 196214), (116, 182682), (136, 155817), (153, 138504), (174, 121788), (199, 106488), (204, 103878), (216, 98107), (232, 91341), (261, 81192), (306, 69252), (348, 60894), (398, 53244), (408, 51939), (459, 46168), (493, 42984), (522, 40596), (597, 35496), (612, 34626), (696, 30447), (783, 27064), (796, 26622), (918, 23084), (986, 21492), (1044, 20298), (1194, 17748), (1224, 17313), (1479, 14328), (1566, 13532), (1592, 13311), (1791, 11832), (1836, 11542), (1972, 10746), (2088, 10149), (2388, 8874), (2958, 7164), (3132, 6766), (3383, 6264), (3582, 5916), (3672, 5771), (3944, 5373), (4437, 4776)]