1388391189

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1\times {\mathrm{20717}}^1$

素因数の和:21060

約数の個数: 16

約数和(自身を含む): 1879536960

約数和(自身を除く): 491145771

約数列:

[1, 3, 89, 251, 267, 753, 20717, 22339, 62151, 67017, 1843813, 5199967, 5531439, 15599901, 462797063, 1388391189]

約数ペア:

[(1, 1388391189), (3, 462797063), (89, 15599901), (251, 5531439), (267, 5199967), (753, 1843813), (20717, 67017), (22339, 62151)]