18546638

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 30825144

約数和(自身を除く): 12278506

約数列:

[1, 2, 11, 22, 121, 173, 242, 346, 443, 886, 1903, 3806, 4873, 9746, 20933, 41866, 53603, 76639, 107206, 153278, 843029, 1686058, 9273319, 18546638]

約数ペア:

[(1, 18546638), (2, 9273319), (11, 1686058), (22, 843029), (121, 153278), (173, 107206), (242, 76639), (346, 53603), (443, 41866), (886, 20933), (1903, 9746), (3806, 4873)]