257217807

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{14461}}^1$

素因数の和:14500

約数の個数: 36

約数和(自身を含む): 438545688

約数和(自身を除く): 181327881

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1617, 2541, 5929, 14461, 17787, 43383, 101227, 159071, 303681, 477213, 708589, 1113497, 1749781, 2125767, 3340491, 5249343, 7794479, 12248467, 23383437, 36745401, 85739269, 257217807]

約数ペア:

[(1, 257217807), (3, 85739269), (7, 36745401), (11, 23383437), (21, 12248467), (33, 7794479), (49, 5249343), (77, 3340491), (121, 2125767), (147, 1749781), (231, 1113497), (363, 708589), (539, 477213), (847, 303681), (1617, 159071), (2541, 101227), (5929, 43383), (14461, 17787)]