7478217

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 32

約数和(自身を含む): 11612160

約数和(自身を除く): 4133943

約数列:

[1, 3, 9, 27, 47, 71, 83, 141, 213, 249, 423, 639, 747, 1269, 1917, 2241, 3337, 3901, 5893, 10011, 11703, 17679, 30033, 35109, 53037, 90099, 105327, 159111, 276971, 830913, 2492739, 7478217]

約数ペア:

[(1, 7478217), (3, 2492739), (9, 830913), (27, 276971), (47, 159111), (71, 105327), (83, 90099), (141, 53037), (213, 35109), (249, 30033), (423, 17679), (639, 11703), (747, 10011), (1269, 5893), (1917, 3901), (2241, 3337)]