18045005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4621}}^1$

素因数の和:4708

約数の個数: 16

約数和(自身を含む): 23960448

約数和(自身を除く): 5915443

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 4621, 23105, 50831, 254155, 328091, 1640455, 3609001, 18045005]

約数ペア:

[(1, 18045005), (5, 3609001), (11, 1640455), (55, 328091), (71, 254155), (355, 50831), (781, 23105), (3905, 4621)]