17621721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7927}}^1$

素因数の和:7965

約数の個数: 24

約数和(自身を含む): 28857920

約数和(自身を除く): 11236199

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 7927, 23781, 71343, 103051, 150613, 309153, 451839, 927459, 1355517, 1957969, 5873907, 17621721]

約数ペア:

[(1, 17621721), (3, 5873907), (9, 1957969), (13, 1355517), (19, 927459), (39, 451839), (57, 309153), (117, 150613), (171, 103051), (247, 71343), (741, 23781), (2223, 7927)]