20813436

素因数分解:

$2^2\times 3^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:75

約数の個数: 216

約数和(自身を含む): 69713280

約数和(自身を除く): 48899844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 23, 27, 28, 36, 38, 42, 46, 49, 54, 57, 63, 69, 76, 81, 84, 92, 98, 108, 114, 126, 133, 138, 147, 161, 162, 171, 189, 196, 207, 228, 243, 252, 266, 276, 294, 322, 324, 342, 378, 399, 414, 437, 441, 483, 486, 513, 532, 567, 588, 621, 644, 684, 756, 798, 828, 874, 882, 931, 966, 972, 1026, 1127, 1134, 1197, 1242, 1311, 1323, 1449, 1539, 1596, 1701, 1748, 1764, 1862, 1863, 1932, 2052, 2254, 2268, 2394, 2484, 2622, 2646, 2793, 2898, 3059, 3078, 3381, 3402, 3591, 3724, 3726, 3933, 3969, 4347, 4508, 4617, 4788, 5244, 5292, 5586, 5589, 5796, 6118, 6156, 6762, 6804, 7182, 7452, 7866, 7938, 8379, 8694, 9177, 9234, 10143, 10773, 11172, 11178, 11799, 11907, 12236, 13041, 13524, 14364, 15732, 15876, 16758, 17388, 18354, 18468, 20286, 21413, 21546, 22356, 23598, 23814, 25137, 26082, 27531, 30429, 32319, 33516, 35397, 36708, 39123, 40572, 42826, 43092, 47196, 47628, 50274, 52164, 55062, 60858, 64239, 64638, 70794, 75411, 78246, 82593, 85652, 91287, 100548, 106191, 110124, 121716, 128478, 129276, 141588, 150822, 156492, 165186, 182574, 192717, 212382, 226233, 247779, 256956, 273861, 301644, 330372, 365148, 385434, 424764, 452466, 495558, 547722, 578151, 743337, 770868, 904932, 991116, 1095444, 1156302, 1486674, 1734453, 2312604, 2973348, 3468906, 5203359, 6937812, 10406718, 20813436]

約数ペア:

[(1, 20813436), (2, 10406718), (3, 6937812), (4, 5203359), (6, 3468906), (7, 2973348), (9, 2312604), (12, 1734453), (14, 1486674), (18, 1156302), (19, 1095444), (21, 991116), (23, 904932), (27, 770868), (28, 743337), (36, 578151), (38, 547722), (42, 495558), (46, 452466), (49, 424764), (54, 385434), (57, 365148), (63, 330372), (69, 301644), (76, 273861), (81, 256956), (84, 247779), (92, 226233), (98, 212382), (108, 192717), (114, 182574), (126, 165186), (133, 156492), (138, 150822), (147, 141588), (161, 129276), (162, 128478), (171, 121716), (189, 110124), (196, 106191), (207, 100548), (228, 91287), (243, 85652), (252, 82593), (266, 78246), (276, 75411), (294, 70794), (322, 64638), (324, 64239), (342, 60858), (378, 55062), (399, 52164), (414, 50274), (437, 47628), (441, 47196), (483, 43092), (486, 42826), (513, 40572), (532, 39123), (567, 36708), (588, 35397), (621, 33516), (644, 32319), (684, 30429), (756, 27531), (798, 26082), (828, 25137), (874, 23814), (882, 23598), (931, 22356), (966, 21546), (972, 21413), (1026, 20286), (1127, 18468), (1134, 18354), (1197, 17388), (1242, 16758), (1311, 15876), (1323, 15732), (1449, 14364), (1539, 13524), (1596, 13041), (1701, 12236), (1748, 11907), (1764, 11799), (1862, 11178), (1863, 11172), (1932, 10773), (2052, 10143), (2254, 9234), (2268, 9177), (2394, 8694), (2484, 8379), (2622, 7938), (2646, 7866), (2793, 7452), (2898, 7182), (3059, 6804), (3078, 6762), (3381, 6156), (3402, 6118), (3591, 5796), (3724, 5589), (3726, 5586), (3933, 5292), (3969, 5244), (4347, 4788), (4508, 4617)]