1209904857

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:337

約数の個数: 120

約数和(自身を含む): 2283659136

約数和(自身を除く): 1073754279

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 57, 63, 69, 81, 133, 161, 171, 189, 207, 257, 361, 399, 437, 483, 513, 567, 621, 771, 1083, 1197, 1311, 1449, 1539, 1799, 1863, 2313, 2527, 3059, 3249, 3591, 3933, 4347, 4883, 5397, 5911, 6939, 7581, 8303, 9177, 9747, 10773, 11799, 13041, 14649, 16191, 17733, 20817, 22743, 24909, 27531, 29241, 34181, 35397, 41377, 43947, 48573, 53199, 58121, 68229, 74727, 82593, 92777, 102543, 112309, 124131, 131841, 145719, 159597, 174363, 204687, 224181, 247779, 278331, 307629, 336927, 372393, 395523, 478791, 523089, 649439, 672543, 786163, 834993, 922887, 1010781, 1117179, 1569267, 1948317, 2133871, 2358489, 2504979, 2768661, 3032343, 3351537, 4707801, 5844951, 6401613, 7075467, 7514937, 9097029, 14937097, 17534853, 19204839, 21226401, 44811291, 52604559, 57614517, 63679203, 134433873, 172843551, 403301619, 1209904857]

約数ペア:

[(1, 1209904857), (3, 403301619), (7, 172843551), (9, 134433873), (19, 63679203), (21, 57614517), (23, 52604559), (27, 44811291), (57, 21226401), (63, 19204839), (69, 17534853), (81, 14937097), (133, 9097029), (161, 7514937), (171, 7075467), (189, 6401613), (207, 5844951), (257, 4707801), (361, 3351537), (399, 3032343), (437, 2768661), (483, 2504979), (513, 2358489), (567, 2133871), (621, 1948317), (771, 1569267), (1083, 1117179), (1197, 1010781), (1311, 922887), (1449, 834993), (1539, 786163), (1799, 672543), (1863, 649439), (2313, 523089), (2527, 478791), (3059, 395523), (3249, 372393), (3591, 336927), (3933, 307629), (4347, 278331), (4883, 247779), (5397, 224181), (5911, 204687), (6939, 174363), (7581, 159597), (8303, 145719), (9177, 131841), (9747, 124131), (10773, 112309), (11799, 102543), (13041, 92777), (14649, 82593), (16191, 74727), (17733, 68229), (20817, 58121), (22743, 53199), (24909, 48573), (27531, 43947), (29241, 41377), (34181, 35397)]