21005568

素因数分解:

$2^8\times 3^4\times {\mathrm{1013}}^1$

素因数の和:1041

約数の個数: 90

約数和(自身を含む): 62696634

約数和(自身を除く): 41691066

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 256, 288, 324, 384, 432, 576, 648, 768, 864, 1013, 1152, 1296, 1728, 2026, 2304, 2592, 3039, 3456, 4052, 5184, 6078, 6912, 8104, 9117, 10368, 12156, 16208, 18234, 20736, 24312, 27351, 32416, 36468, 48624, 54702, 64832, 72936, 82053, 97248, 109404, 129664, 145872, 164106, 194496, 218808, 259328, 291744, 328212, 388992, 437616, 583488, 656424, 777984, 875232, 1166976, 1312848, 1750464, 2333952, 2625696, 3500928, 5251392, 7001856, 10502784, 21005568]

約数ペア:

[(1, 21005568), (2, 10502784), (3, 7001856), (4, 5251392), (6, 3500928), (8, 2625696), (9, 2333952), (12, 1750464), (16, 1312848), (18, 1166976), (24, 875232), (27, 777984), (32, 656424), (36, 583488), (48, 437616), (54, 388992), (64, 328212), (72, 291744), (81, 259328), (96, 218808), (108, 194496), (128, 164106), (144, 145872), (162, 129664), (192, 109404), (216, 97248), (256, 82053), (288, 72936), (324, 64832), (384, 54702), (432, 48624), (576, 36468), (648, 32416), (768, 27351), (864, 24312), (1013, 20736), (1152, 18234), (1296, 16208), (1728, 12156), (2026, 10368), (2304, 9117), (2592, 8104), (3039, 6912), (3456, 6078), (4052, 5184)]