217989849

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{709}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 365905600

約数和(自身を除く): 147915751

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 709, 847, 1331, 2127, 2541, 3993, 4963, 7799, 9317, 14641, 14889, 23397, 27951, 43923, 54593, 85789, 102487, 163779, 257367, 307461, 600523, 943679, 1801569, 2831037, 6605753, 10380469, 19817259, 31141407, 72663283, 217989849]

約数ペア:

[(1, 217989849), (3, 72663283), (7, 31141407), (11, 19817259), (21, 10380469), (33, 6605753), (77, 2831037), (121, 1801569), (231, 943679), (363, 600523), (709, 307461), (847, 257367), (1331, 163779), (2127, 102487), (2541, 85789), (3993, 54593), (4963, 43923), (7799, 27951), (9317, 23397), (14641, 14889)]