21095251456

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{883}}^1\times {\mathrm{1609}}^1$

素因数の和:2539

約数の個数: 80

約数和(自身を含む): 43679235600

約数和(自身を除く): 22583984144

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 512, 883, 928, 1609, 1766, 1856, 3218, 3532, 3712, 6436, 7064, 7424, 12872, 14128, 14848, 25607, 25744, 28256, 46661, 51214, 51488, 56512, 93322, 102428, 102976, 113024, 186644, 204856, 205952, 226048, 373288, 409712, 411904, 452096, 746576, 819424, 823808, 1420747, 1493152, 1638848, 2841494, 2986304, 3277696, 5682988, 5972608, 6555392, 11365976, 11945216, 13110784, 22731952, 23890432, 41201663, 45463904, 82403326, 90927808, 164806652, 181855616, 329613304, 363711232, 659226608, 727422464, 1318453216, 2636906432, 5273812864, 10547625728, 21095251456]

約数ペア:

[(1, 21095251456), (2, 10547625728), (4, 5273812864), (8, 2636906432), (16, 1318453216), (29, 727422464), (32, 659226608), (58, 363711232), (64, 329613304), (116, 181855616), (128, 164806652), (232, 90927808), (256, 82403326), (464, 45463904), (512, 41201663), (883, 23890432), (928, 22731952), (1609, 13110784), (1766, 11945216), (1856, 11365976), (3218, 6555392), (3532, 5972608), (3712, 5682988), (6436, 3277696), (7064, 2986304), (7424, 2841494), (12872, 1638848), (14128, 1493152), (14848, 1420747), (25607, 823808), (25744, 819424), (28256, 746576), (46661, 452096), (51214, 411904), (51488, 409712), (56512, 373288), (93322, 226048), (102428, 205952), (102976, 204856), (113024, 186644)]