18275817

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 29320192

約数和(自身を除く): 11044375

約数列:

[1, 3, 7, 21, 37, 43, 111, 129, 259, 301, 547, 777, 903, 1591, 1641, 3829, 4773, 11137, 11487, 20239, 23521, 33411, 60717, 70563, 141673, 164647, 425019, 493941, 870277, 2610831, 6091939, 18275817]

約数ペア:

[(1, 18275817), (3, 6091939), (7, 2610831), (21, 870277), (37, 493941), (43, 425019), (111, 164647), (129, 141673), (259, 70563), (301, 60717), (547, 33411), (777, 23521), (903, 20239), (1591, 11487), (1641, 11137), (3829, 4773)]