257900538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211741}}^1$

素因数の和:211782

約数の個数: 32

約数和(自身を含む): 609816960

約数和(自身を除く): 351916422

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 211741, 423482, 635223, 1270446, 1482187, 2964374, 4446561, 6140489, 8893122, 12280978, 18421467, 36842934, 42983423, 85966846, 128950269, 257900538]

約数ペア:

[(1, 257900538), (2, 128950269), (3, 85966846), (6, 42983423), (7, 36842934), (14, 18421467), (21, 12280978), (29, 8893122), (42, 6140489), (58, 4446561), (87, 2964374), (174, 1482187), (203, 1270446), (406, 635223), (609, 423482), (1218, 211741)]