20769987

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26731}}^1$

素因数の和:26778

約数の個数: 16

約数和(自身を含む): 32506112

約数和(自身を除く): 11736125

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26731, 80193, 187117, 561351, 989047, 2967141, 6923329, 20769987]

約数ペア:

[(1, 20769987), (3, 6923329), (7, 2967141), (21, 989047), (37, 561351), (111, 187117), (259, 80193), (777, 26731)]