20172142978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9820907}}^1$

素因数の和:9821001

約数の個数: 16

約数和(自身を含む): 32998250880

約数和(自身を除く): 12826107902

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 9820907, 19641814, 127671791, 255343582, 775851653, 1551703306, 10086071489, 20172142978]

約数ペア:

[(1, 20172142978), (2, 10086071489), (13, 1551703306), (26, 775851653), (79, 255343582), (158, 127671791), (1027, 19641814), (2054, 9820907)]