21253848

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 192

約数和(自身を含む): 70917120

約数和(自身を除く): 49663272

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 31, 33, 42, 44, 49, 53, 56, 62, 66, 77, 84, 88, 93, 98, 106, 124, 132, 147, 154, 159, 168, 186, 196, 212, 217, 231, 248, 264, 294, 308, 318, 341, 371, 372, 392, 424, 434, 462, 539, 583, 588, 616, 636, 651, 682, 742, 744, 868, 924, 1023, 1078, 1113, 1166, 1176, 1272, 1302, 1364, 1484, 1519, 1617, 1643, 1736, 1749, 1848, 2046, 2156, 2226, 2332, 2387, 2597, 2604, 2728, 2968, 3038, 3234, 3286, 3498, 4081, 4092, 4312, 4452, 4557, 4664, 4774, 4929, 5194, 5208, 6076, 6468, 6572, 6996, 7161, 7791, 8162, 8184, 8904, 9114, 9548, 9858, 10388, 11501, 12152, 12243, 12936, 13144, 13992, 14322, 15582, 16324, 16709, 18073, 18228, 19096, 19716, 20776, 23002, 24486, 28567, 28644, 31164, 32648, 33418, 34503, 36146, 36456, 39432, 46004, 48972, 50127, 54219, 57134, 57288, 62328, 66836, 69006, 72292, 80507, 85701, 92008, 97944, 100254, 108438, 114268, 126511, 133672, 138012, 144584, 161014, 171402, 200508, 216876, 228536, 241521, 253022, 276024, 322028, 342804, 379533, 401016, 433752, 483042, 506044, 644056, 685608, 759066, 885577, 966084, 1012088, 1518132, 1771154, 1932168, 2656731, 3036264, 3542308, 5313462, 7084616, 10626924, 21253848]

約数ペア:

[(1, 21253848), (2, 10626924), (3, 7084616), (4, 5313462), (6, 3542308), (7, 3036264), (8, 2656731), (11, 1932168), (12, 1771154), (14, 1518132), (21, 1012088), (22, 966084), (24, 885577), (28, 759066), (31, 685608), (33, 644056), (42, 506044), (44, 483042), (49, 433752), (53, 401016), (56, 379533), (62, 342804), (66, 322028), (77, 276024), (84, 253022), (88, 241521), (93, 228536), (98, 216876), (106, 200508), (124, 171402), (132, 161014), (147, 144584), (154, 138012), (159, 133672), (168, 126511), (186, 114268), (196, 108438), (212, 100254), (217, 97944), (231, 92008), (248, 85701), (264, 80507), (294, 72292), (308, 69006), (318, 66836), (341, 62328), (371, 57288), (372, 57134), (392, 54219), (424, 50127), (434, 48972), (462, 46004), (539, 39432), (583, 36456), (588, 36146), (616, 34503), (636, 33418), (651, 32648), (682, 31164), (742, 28644), (744, 28567), (868, 24486), (924, 23002), (1023, 20776), (1078, 19716), (1113, 19096), (1166, 18228), (1176, 18073), (1272, 16709), (1302, 16324), (1364, 15582), (1484, 14322), (1519, 13992), (1617, 13144), (1643, 12936), (1736, 12243), (1749, 12152), (1848, 11501), (2046, 10388), (2156, 9858), (2226, 9548), (2332, 9114), (2387, 8904), (2597, 8184), (2604, 8162), (2728, 7791), (2968, 7161), (3038, 6996), (3234, 6572), (3286, 6468), (3498, 6076), (4081, 5208), (4092, 5194), (4312, 4929), (4452, 4774), (4557, 4664)]