19707717

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{4129}}^1$

素因数の和:4212

約数の個数: 16

約数和(自身を含む): 27621440

約数和(自身を除く): 7913723

約数列:

[1, 3, 37, 43, 111, 129, 1591, 4129, 4773, 12387, 152773, 177547, 458319, 532641, 6569239, 19707717]

約数ペア:

[(1, 19707717), (3, 6569239), (37, 532641), (43, 458319), (111, 177547), (129, 152773), (1591, 12387), (4129, 4773)]