257466321

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{7417}}^1$

素因数の和:7478

約数の個数: 48

約数和(自身を含む): 462883200

約数和(自身を除く): 205416879

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 551, 609, 1197, 1653, 1827, 3857, 4959, 7417, 11571, 22251, 34713, 51919, 66753, 140923, 155757, 215093, 422769, 467271, 645279, 986461, 1268307, 1505651, 1935837, 2959383, 4086767, 4516953, 8878149, 12260301, 13550859, 28607369, 36780903, 85822107, 257466321]

約数ペア:

[(1, 257466321), (3, 85822107), (7, 36780903), (9, 28607369), (19, 13550859), (21, 12260301), (29, 8878149), (57, 4516953), (63, 4086767), (87, 2959383), (133, 1935837), (171, 1505651), (203, 1268307), (261, 986461), (399, 645279), (551, 467271), (609, 422769), (1197, 215093), (1653, 155757), (1827, 140923), (3857, 66753), (4959, 51919), (7417, 34713), (11571, 22251)]