20952008

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 51464160

約数和(自身を除く): 30512152

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 49, 56, 77, 86, 88, 98, 113, 154, 172, 196, 226, 301, 308, 344, 392, 452, 473, 539, 602, 616, 791, 904, 946, 1078, 1204, 1243, 1582, 1892, 2107, 2156, 2408, 2486, 3164, 3311, 3784, 4214, 4312, 4859, 4972, 5537, 6328, 6622, 8428, 8701, 9718, 9944, 11074, 13244, 16856, 17402, 19436, 22148, 23177, 26488, 34013, 34804, 38872, 44296, 46354, 53449, 60907, 68026, 69608, 92708, 106898, 121814, 136052, 185416, 213796, 238091, 243628, 272104, 374143, 427592, 476182, 487256, 748286, 952364, 1496572, 1904728, 2619001, 2993144, 5238002, 10476004, 20952008]

約数ペア:

[(1, 20952008), (2, 10476004), (4, 5238002), (7, 2993144), (8, 2619001), (11, 1904728), (14, 1496572), (22, 952364), (28, 748286), (43, 487256), (44, 476182), (49, 427592), (56, 374143), (77, 272104), (86, 243628), (88, 238091), (98, 213796), (113, 185416), (154, 136052), (172, 121814), (196, 106898), (226, 92708), (301, 69608), (308, 68026), (344, 60907), (392, 53449), (452, 46354), (473, 44296), (539, 38872), (602, 34804), (616, 34013), (791, 26488), (904, 23177), (946, 22148), (1078, 19436), (1204, 17402), (1243, 16856), (1582, 13244), (1892, 11074), (2107, 9944), (2156, 9718), (2408, 8701), (2486, 8428), (3164, 6622), (3311, 6328), (3784, 5537), (4214, 4972), (4312, 4859)]