2658561

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 3731904

約数和(自身を除く): 1073343

約数列:

[1, 3, 37, 43, 111, 129, 557, 1591, 1671, 4773, 20609, 23951, 61827, 71853, 886187, 2658561]

約数ペア:

[(1, 2658561), (3, 886187), (37, 71853), (43, 61827), (111, 23951), (129, 20609), (557, 4773), (1591, 1671)]