21784224

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1$

素因数の和:459

約数の個数: 144

約数和(自身を含む): 72739296

約数和(自身を除く): 50955072

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 49, 56, 66, 77, 84, 88, 96, 98, 112, 132, 147, 154, 168, 176, 196, 224, 231, 264, 294, 308, 336, 352, 392, 421, 462, 528, 539, 588, 616, 672, 784, 842, 924, 1056, 1078, 1176, 1232, 1263, 1568, 1617, 1684, 1848, 2156, 2352, 2464, 2526, 2947, 3234, 3368, 3696, 4312, 4631, 4704, 5052, 5894, 6468, 6736, 7392, 8624, 8841, 9262, 10104, 11788, 12936, 13472, 13893, 17248, 17682, 18524, 20208, 20629, 23576, 25872, 27786, 32417, 35364, 37048, 40416, 41258, 47152, 51744, 55572, 61887, 64834, 70728, 74096, 82516, 94304, 97251, 111144, 123774, 129668, 141456, 148192, 165032, 194502, 222288, 226919, 247548, 259336, 282912, 330064, 389004, 444576, 453838, 495096, 518672, 660128, 680757, 778008, 907676, 990192, 1037344, 1361514, 1556016, 1815352, 1980384, 2723028, 3112032, 3630704, 5446056, 7261408, 10892112, 21784224]

約数ペア:

[(1, 21784224), (2, 10892112), (3, 7261408), (4, 5446056), (6, 3630704), (7, 3112032), (8, 2723028), (11, 1980384), (12, 1815352), (14, 1556016), (16, 1361514), (21, 1037344), (22, 990192), (24, 907676), (28, 778008), (32, 680757), (33, 660128), (42, 518672), (44, 495096), (48, 453838), (49, 444576), (56, 389004), (66, 330064), (77, 282912), (84, 259336), (88, 247548), (96, 226919), (98, 222288), (112, 194502), (132, 165032), (147, 148192), (154, 141456), (168, 129668), (176, 123774), (196, 111144), (224, 97251), (231, 94304), (264, 82516), (294, 74096), (308, 70728), (336, 64834), (352, 61887), (392, 55572), (421, 51744), (462, 47152), (528, 41258), (539, 40416), (588, 37048), (616, 35364), (672, 32417), (784, 27786), (842, 25872), (924, 23576), (1056, 20629), (1078, 20208), (1176, 18524), (1232, 17682), (1263, 17248), (1568, 13893), (1617, 13472), (1684, 12936), (1848, 11788), (2156, 10104), (2352, 9262), (2464, 8841), (2526, 8624), (2947, 7392), (3234, 6736), (3368, 6468), (3696, 5894), (4312, 5052), (4631, 4704)]