18985389

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1327}}^1$

素因数の和:1600

約数の個数: 16

約数和(自身を含む): 26772480

約数和(自身を除く): 7787091

約数列:

[1, 3, 19, 57, 251, 753, 1327, 3981, 4769, 14307, 25213, 75639, 333077, 999231, 6328463, 18985389]

約数ペア:

[(1, 18985389), (3, 6328463), (19, 999231), (57, 333077), (251, 75639), (753, 25213), (1327, 14307), (3981, 4769)]