209230539

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{20047}}^1$

素因数の和:20135

約数の個数: 24

約数和(自身を含む): 329107968

約数和(自身を除く): 119877429

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 10437, 20047, 60141, 140329, 420987, 982303, 1423337, 2946909, 4270011, 9963359, 29890077, 69743513, 209230539]

約数ペア:

[(1, 209230539), (3, 69743513), (7, 29890077), (21, 9963359), (49, 4270011), (71, 2946909), (147, 1423337), (213, 982303), (497, 420987), (1491, 140329), (3479, 60141), (10437, 20047)]