20418814

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9941}}^1$

素因数の和:10035

約数の個数: 16

約数和(自身を含む): 33405120

約数和(自身を除く): 12986306

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 9941, 19882, 129233, 258466, 785339, 1570678, 10209407, 20418814]

約数ペア:

[(1, 20418814), (2, 10209407), (13, 1570678), (26, 785339), (79, 258466), (158, 129233), (1027, 19882), (2054, 9941)]