21195328

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 168

約数和(自身を含む): 58375296

約数和(自身を除く): 37179968

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 23, 28, 32, 34, 44, 46, 56, 64, 68, 77, 88, 92, 112, 119, 121, 136, 154, 161, 176, 184, 187, 224, 238, 242, 253, 272, 308, 322, 352, 368, 374, 391, 448, 476, 484, 506, 544, 616, 644, 704, 736, 748, 782, 847, 952, 968, 1012, 1088, 1232, 1288, 1309, 1472, 1496, 1564, 1694, 1771, 1904, 1936, 2024, 2057, 2464, 2576, 2618, 2737, 2783, 2992, 3128, 3388, 3542, 3808, 3872, 4048, 4114, 4301, 4928, 5152, 5236, 5474, 5566, 5984, 6256, 6776, 7084, 7616, 7744, 8096, 8228, 8602, 10304, 10472, 10948, 11132, 11968, 12512, 13552, 14168, 14399, 16192, 16456, 17204, 19481, 20944, 21896, 22264, 25024, 27104, 28336, 28798, 30107, 32912, 34408, 38962, 41888, 43792, 44528, 47311, 54208, 56672, 57596, 60214, 65824, 68816, 77924, 83776, 87584, 89056, 94622, 113344, 115192, 120428, 131648, 137632, 155848, 175168, 178112, 189244, 230384, 240856, 275264, 311696, 331177, 378488, 460768, 481712, 623392, 662354, 756976, 921536, 963424, 1246784, 1324708, 1513952, 1926848, 2649416, 3027904, 5298832, 10597664, 21195328]

約数ペア:

[(1, 21195328), (2, 10597664), (4, 5298832), (7, 3027904), (8, 2649416), (11, 1926848), (14, 1513952), (16, 1324708), (17, 1246784), (22, 963424), (23, 921536), (28, 756976), (32, 662354), (34, 623392), (44, 481712), (46, 460768), (56, 378488), (64, 331177), (68, 311696), (77, 275264), (88, 240856), (92, 230384), (112, 189244), (119, 178112), (121, 175168), (136, 155848), (154, 137632), (161, 131648), (176, 120428), (184, 115192), (187, 113344), (224, 94622), (238, 89056), (242, 87584), (253, 83776), (272, 77924), (308, 68816), (322, 65824), (352, 60214), (368, 57596), (374, 56672), (391, 54208), (448, 47311), (476, 44528), (484, 43792), (506, 41888), (544, 38962), (616, 34408), (644, 32912), (704, 30107), (736, 28798), (748, 28336), (782, 27104), (847, 25024), (952, 22264), (968, 21896), (1012, 20944), (1088, 19481), (1232, 17204), (1288, 16456), (1309, 16192), (1472, 14399), (1496, 14168), (1564, 13552), (1694, 12512), (1771, 11968), (1904, 11132), (1936, 10948), (2024, 10472), (2057, 10304), (2464, 8602), (2576, 8228), (2618, 8096), (2737, 7744), (2783, 7616), (2992, 7084), (3128, 6776), (3388, 6256), (3542, 5984), (3808, 5566), (3872, 5474), (4048, 5236), (4114, 5152), (4301, 4928)]