217489743

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{2239}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 322882560

約数和(自身を除く): 105392817

約数列:

[1, 3, 9, 43, 129, 251, 387, 753, 2239, 2259, 6717, 10793, 20151, 32379, 96277, 97137, 288831, 561989, 866493, 1685967, 5057901, 24165527, 72496581, 217489743]

約数ペア:

[(1, 217489743), (3, 72496581), (9, 24165527), (43, 5057901), (129, 1685967), (251, 866493), (387, 561989), (753, 288831), (2239, 97137), (2259, 96277), (6717, 32379), (10793, 20151)]