20547405

素因数分解:

$3^3\times 5^1\times {\mathrm{152203}}^1$

素因数の和:152217

約数の個数: 16

約数和(自身を含む): 36528960

約数和(自身を除く): 15981555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 152203, 456609, 761015, 1369827, 2283045, 4109481, 6849135, 20547405]

約数ペア:

[(1, 20547405), (3, 6849135), (5, 4109481), (9, 2283045), (15, 1369827), (27, 761015), (45, 456609), (135, 152203)]