21350055

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20047}}^1$

素因数の和:20126

約数の個数: 16

約数和(自身を含む): 34642944

約数和(自身を除く): 13292889

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 20047, 60141, 100235, 300705, 1423337, 4270011, 7116685, 21350055]

約数ペア:

[(1, 21350055), (3, 7116685), (5, 4270011), (15, 1423337), (71, 300705), (213, 100235), (355, 60141), (1065, 20047)]