257324391

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 424627200

約数和(自身を除く): 167302809

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 113, 171, 193, 207, 339, 437, 513, 579, 621, 1017, 1311, 1737, 2147, 2599, 3051, 3667, 3933, 4439, 5211, 6441, 7797, 11001, 11799, 13317, 19323, 21809, 23391, 33003, 39951, 49381, 57969, 65427, 70173, 84341, 99009, 119853, 148143, 196281, 253023, 414371, 444429, 501607, 588843, 759069, 1243113, 1333287, 1504821, 2277207, 3729339, 4514463, 9530533, 11188017, 13543389, 28591599, 85774797, 257324391]

約数ペア:

[(1, 257324391), (3, 85774797), (9, 28591599), (19, 13543389), (23, 11188017), (27, 9530533), (57, 4514463), (69, 3729339), (113, 2277207), (171, 1504821), (193, 1333287), (207, 1243113), (339, 759069), (437, 588843), (513, 501607), (579, 444429), (621, 414371), (1017, 253023), (1311, 196281), (1737, 148143), (2147, 119853), (2599, 99009), (3051, 84341), (3667, 70173), (3933, 65427), (4439, 57969), (5211, 49381), (6441, 39951), (7797, 33003), (11001, 23391), (11799, 21809), (13317, 19323)]