18872439

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{353}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 25691904

約数和(自身を除く): 6819465

約数列:

[1, 3, 71, 213, 251, 353, 753, 1059, 17821, 25063, 53463, 75189, 88603, 265809, 6290813, 18872439]

約数ペア:

[(1, 18872439), (3, 6290813), (71, 265809), (213, 88603), (251, 75189), (353, 53463), (753, 25063), (1059, 17821)]