205509987

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{43997}}^1$

素因数の和:44179

約数の個数: 16

約数和(自身を含む): 306226080

約数和(自身を除く): 100716093

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4671, 43997, 131991, 395973, 1187919, 7611481, 22834443, 68503329, 205509987]

約数ペア:

[(1, 205509987), (3, 68503329), (9, 22834443), (27, 7611481), (173, 1187919), (519, 395973), (1557, 131991), (4671, 43997)]