18516789

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 10312011

約数列:

[1, 3, 9, 27, 41, 43, 123, 129, 369, 387, 389, 1107, 1161, 1167, 1763, 3501, 5289, 10503, 15867, 15949, 16727, 47601, 47847, 50181, 143541, 150543, 430623, 451629, 685807, 2057421, 6172263, 18516789]

約数ペア:

[(1, 18516789), (3, 6172263), (9, 2057421), (27, 685807), (41, 451629), (43, 430623), (123, 150543), (129, 143541), (369, 50181), (387, 47847), (389, 47601), (1107, 16727), (1161, 15949), (1167, 15867), (1763, 10503), (3501, 5289)]