21805113

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{919}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 31795200

約数和(自身を除く): 9990087

約数列:

[1, 3, 11, 33, 719, 919, 2157, 2757, 7909, 10109, 23727, 30327, 660761, 1982283, 7268371, 21805113]

約数ペア:

[(1, 21805113), (3, 7268371), (11, 1982283), (33, 660761), (719, 30327), (919, 23727), (2157, 10109), (2757, 7909)]