21655872

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 168

約数和(自身を含む): 73225152

約数和(自身を除く): 51569280

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 41, 42, 48, 56, 63, 64, 72, 82, 84, 96, 112, 123, 126, 131, 144, 164, 168, 192, 224, 246, 252, 262, 287, 288, 328, 336, 369, 393, 448, 492, 504, 524, 574, 576, 656, 672, 738, 786, 861, 917, 984, 1008, 1048, 1148, 1179, 1312, 1344, 1476, 1572, 1722, 1834, 1968, 2016, 2096, 2296, 2358, 2583, 2624, 2751, 2952, 3144, 3444, 3668, 3936, 4032, 4192, 4592, 4716, 5166, 5371, 5502, 5904, 6288, 6888, 7336, 7872, 8253, 8384, 9184, 9432, 10332, 10742, 11004, 11808, 12576, 13776, 14672, 16113, 16506, 18368, 18864, 20664, 21484, 22008, 23616, 25152, 27552, 29344, 32226, 33012, 37597, 37728, 41328, 42968, 44016, 48339, 55104, 58688, 64452, 66024, 75194, 75456, 82656, 85936, 88032, 96678, 112791, 128904, 132048, 150388, 165312, 171872, 176064, 193356, 225582, 257808, 264096, 300776, 338373, 343744, 386712, 451164, 515616, 528192, 601552, 676746, 773424, 902328, 1031232, 1203104, 1353492, 1546848, 1804656, 2406208, 2706984, 3093696, 3609312, 5413968, 7218624, 10827936, 21655872]

約数ペア:

[(1, 21655872), (2, 10827936), (3, 7218624), (4, 5413968), (6, 3609312), (7, 3093696), (8, 2706984), (9, 2406208), (12, 1804656), (14, 1546848), (16, 1353492), (18, 1203104), (21, 1031232), (24, 902328), (28, 773424), (32, 676746), (36, 601552), (41, 528192), (42, 515616), (48, 451164), (56, 386712), (63, 343744), (64, 338373), (72, 300776), (82, 264096), (84, 257808), (96, 225582), (112, 193356), (123, 176064), (126, 171872), (131, 165312), (144, 150388), (164, 132048), (168, 128904), (192, 112791), (224, 96678), (246, 88032), (252, 85936), (262, 82656), (287, 75456), (288, 75194), (328, 66024), (336, 64452), (369, 58688), (393, 55104), (448, 48339), (492, 44016), (504, 42968), (524, 41328), (574, 37728), (576, 37597), (656, 33012), (672, 32226), (738, 29344), (786, 27552), (861, 25152), (917, 23616), (984, 22008), (1008, 21484), (1048, 20664), (1148, 18864), (1179, 18368), (1312, 16506), (1344, 16113), (1476, 14672), (1572, 13776), (1722, 12576), (1834, 11808), (1968, 11004), (2016, 10742), (2096, 10332), (2296, 9432), (2358, 9184), (2583, 8384), (2624, 8253), (2751, 7872), (2952, 7336), (3144, 6888), (3444, 6288), (3668, 5904), (3936, 5502), (4032, 5371), (4192, 5166), (4592, 4716)]