639225495

素因数分解:

$3^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{21107}}^1$

素因数の和:21791

約数の個数: 24

約数和(自身を含む): 1109689776

約数和(自身を除く): 470464281

約数列:

[1, 3, 5, 9, 15, 45, 673, 2019, 3365, 6057, 10095, 21107, 30285, 63321, 105535, 189963, 316605, 949815, 14205011, 42615033, 71025055, 127845099, 213075165, 639225495]

約数ペア:

[(1, 639225495), (3, 213075165), (5, 127845099), (9, 71025055), (15, 42615033), (45, 14205011), (673, 949815), (2019, 316605), (3365, 189963), (6057, 105535), (10095, 63321), (21107, 30285)]