18198674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 30890496

約数和(自身を除く): 12691822

約数列:

[1, 2, 13, 26, 31, 62, 67, 134, 337, 403, 674, 806, 871, 1742, 2077, 4154, 4381, 8762, 10447, 20894, 22579, 27001, 45158, 54002, 135811, 271622, 293527, 587054, 699949, 1399898, 9099337, 18198674]

約数ペア:

[(1, 18198674), (2, 9099337), (13, 1399898), (26, 699949), (31, 587054), (62, 293527), (67, 271622), (134, 135811), (337, 54002), (403, 45158), (674, 27001), (806, 22579), (871, 20894), (1742, 10447), (2077, 8762), (4154, 4381)]