210231

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 359424

約数和(自身を除く): 149193

約数列:

[1, 3, 7, 9, 21, 47, 63, 71, 141, 213, 329, 423, 497, 639, 987, 1491, 2961, 3337, 4473, 10011, 23359, 30033, 70077, 210231]

約数ペア:

[(1, 210231), (3, 70077), (7, 30033), (9, 23359), (21, 10011), (47, 4473), (63, 3337), (71, 2961), (141, 1491), (213, 987), (329, 639), (423, 497)]