20345805

素因数分解:

$3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1609}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 35413560

約数和(自身を除く): 15067755

約数列:

[1, 3, 5, 9, 15, 45, 281, 843, 1405, 1609, 2529, 4215, 4827, 8045, 12645, 14481, 24135, 72405, 452129, 1356387, 2260645, 4069161, 6781935, 20345805]

約数ペア:

[(1, 20345805), (3, 6781935), (5, 4069161), (9, 2260645), (15, 1356387), (45, 452129), (281, 72405), (843, 24135), (1405, 14481), (1609, 12645), (2529, 8045), (4215, 4827)]