21987331353

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{3917}}^1\times {\mathrm{47977}}^1$

素因数の和:51913

約数の個数: 24

約数和(自身を含む): 34211960328

約数和(自身を除く): 12224628975

約数列:

[1, 3, 9, 13, 39, 117, 3917, 11751, 35253, 47977, 50921, 143931, 152763, 431793, 458289, 623701, 1871103, 5613309, 187925909, 563777727, 1691333181, 2443036817, 7329110451, 21987331353]

約数ペア:

[(1, 21987331353), (3, 7329110451), (9, 2443036817), (13, 1691333181), (39, 563777727), (117, 187925909), (3917, 5613309), (11751, 1871103), (35253, 623701), (47977, 458289), (50921, 431793), (143931, 152763)]