20171853

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3253}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 31980312

約数和(自身を除く): 11808459

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3253, 6201, 9759, 29277, 42289, 126867, 172409, 380601, 517227, 1551681, 2241317, 6723951, 20171853]

約数ペア:

[(1, 20171853), (3, 6723951), (9, 2241317), (13, 1551681), (39, 517227), (53, 380601), (117, 172409), (159, 126867), (477, 42289), (689, 29277), (2067, 9759), (3253, 6201)]