21329568

素因数分解:

$2^5\times 3^5\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:249

約数の個数: 144

約数和(自身を含む): 68062176

約数和(自身を除く): 46732608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 211, 216, 234, 243, 288, 312, 324, 351, 416, 422, 432, 468, 486, 624, 633, 648, 702, 844, 864, 936, 972, 1053, 1248, 1266, 1296, 1404, 1688, 1872, 1899, 1944, 2106, 2532, 2592, 2743, 2808, 3159, 3376, 3744, 3798, 3888, 4212, 5064, 5486, 5616, 5697, 6318, 6752, 7596, 7776, 8229, 8424, 10128, 10972, 11232, 11394, 12636, 15192, 16458, 16848, 17091, 20256, 21944, 22788, 24687, 25272, 30384, 32916, 33696, 34182, 43888, 45576, 49374, 50544, 51273, 60768, 65832, 68364, 74061, 87776, 91152, 98748, 101088, 102546, 131664, 136728, 148122, 182304, 197496, 205092, 222183, 263328, 273456, 296244, 394992, 410184, 444366, 546912, 592488, 666549, 789984, 820368, 888732, 1184976, 1333098, 1640736, 1777464, 2369952, 2666196, 3554928, 5332392, 7109856, 10664784, 21329568]

約数ペア:

[(1, 21329568), (2, 10664784), (3, 7109856), (4, 5332392), (6, 3554928), (8, 2666196), (9, 2369952), (12, 1777464), (13, 1640736), (16, 1333098), (18, 1184976), (24, 888732), (26, 820368), (27, 789984), (32, 666549), (36, 592488), (39, 546912), (48, 444366), (52, 410184), (54, 394992), (72, 296244), (78, 273456), (81, 263328), (96, 222183), (104, 205092), (108, 197496), (117, 182304), (144, 148122), (156, 136728), (162, 131664), (208, 102546), (211, 101088), (216, 98748), (234, 91152), (243, 87776), (288, 74061), (312, 68364), (324, 65832), (351, 60768), (416, 51273), (422, 50544), (432, 49374), (468, 45576), (486, 43888), (624, 34182), (633, 33696), (648, 32916), (702, 30384), (844, 25272), (864, 24687), (936, 22788), (972, 21944), (1053, 20256), (1248, 17091), (1266, 16848), (1296, 16458), (1404, 15192), (1688, 12636), (1872, 11394), (1899, 11232), (1944, 10972), (2106, 10128), (2532, 8424), (2592, 8229), (2743, 7776), (2808, 7596), (3159, 6752), (3376, 6318), (3744, 5697), (3798, 5616), (3888, 5486), (4212, 5064)]