490539

素因数分解:

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

素因数の和:135

約数の個数: 24

約数和(自身を含む): 787968

約数和(自身を除く): 297429

約数列:

[1, 3, 7, 21, 47, 49, 71, 141, 147, 213, 329, 497, 987, 1491, 2303, 3337, 3479, 6909, 10011, 10437, 23359, 70077, 163513, 490539]

約数ペア:

[(1, 490539), (3, 163513), (7, 70077), (21, 23359), (47, 10437), (49, 10011), (71, 6909), (141, 3479), (147, 3337), (213, 2303), (329, 1491), (497, 987)]