208026945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{660403}}^1$

素因数の和:660421

約数の個数: 24

約数和(自身を含む): 412092096

約数和(自身を除く): 204065151

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 660403, 1981209, 3302015, 4622821, 5943627, 9906045, 13868463, 23114105, 29718135, 41605389, 69342315, 208026945]

約数ペア:

[(1, 208026945), (3, 69342315), (5, 41605389), (7, 29718135), (9, 23114105), (15, 13868463), (21, 9906045), (35, 5943627), (45, 4622821), (63, 3302015), (105, 1981209), (315, 660403)]