27720945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{88003}}^1$

素因数の和:88021

約数の個数: 24

約数和(自身を含む): 54914496

約数和(自身を除く): 27193551

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 88003, 264009, 440015, 616021, 792027, 1320045, 1848063, 3080105, 3960135, 5544189, 9240315, 27720945]

約数ペア:

[(1, 27720945), (3, 9240315), (5, 5544189), (7, 3960135), (9, 3080105), (15, 1848063), (21, 1320045), (35, 792027), (45, 616021), (63, 440015), (105, 264009), (315, 88003)]