18947553

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 25894080

約数和(自身を除く): 6946527

約数列:

[1, 3, 53, 159, 269, 443, 807, 1329, 14257, 23479, 42771, 70437, 119167, 357501, 6315851, 18947553]

約数ペア:

[(1, 18947553), (3, 6315851), (53, 357501), (159, 119167), (269, 70437), (443, 42771), (807, 23479), (1329, 14257)]