20512385115

素因数分解:

$3^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1690349}}^1$

素因数の和:1691166

約数の個数: 16

約数和(自身を含む): 32860404000

約数和(自身を除く): 12348018885

約数列:

[1, 3, 5, 15, 809, 2427, 4045, 12135, 1690349, 5071047, 8451745, 25355235, 1367492341, 4102477023, 6837461705, 20512385115]

約数ペア:

[(1, 20512385115), (3, 6837461705), (5, 4102477023), (15, 1367492341), (809, 25355235), (2427, 8451745), (4045, 5071047), (12135, 1690349)]