18967689

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{18013}}^1$

素因数の和:18038

約数の個数: 20

約数和(自身を含む): 30515716

約数和(自身を除く): 11548027

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 18013, 54039, 162117, 234169, 486351, 702507, 1459053, 2107521, 6322563, 18967689]

約数ペア:

[(1, 18967689), (3, 6322563), (9, 2107521), (13, 1459053), (27, 702507), (39, 486351), (81, 234169), (117, 162117), (351, 54039), (1053, 18013)]