21167166251

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{4057}}^1\times {\mathrm{67759}}^1$

素因数の和:71834

約数の個数: 16

約数和(自身を含む): 26397127680

約数和(自身を除く): 5229961429

約数列:

[1, 7, 11, 77, 4057, 28399, 44627, 67759, 312389, 474313, 745349, 5217443, 274898263, 1924287841, 3023880893, 21167166251]

約数ペア:

[(1, 21167166251), (7, 3023880893), (11, 1924287841), (77, 274898263), (4057, 5217443), (28399, 745349), (44627, 474313), (67759, 312389)]