20317707

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1063

約数の個数: 24

約数和(自身を含む): 31162560

約数和(自身を除く): 10844853

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 907, 1179, 2489, 2721, 7467, 8163, 17233, 22401, 51699, 118817, 155097, 356451, 1069353, 2257523, 6772569, 20317707]

約数ペア:

[(1, 20317707), (3, 6772569), (9, 2257523), (19, 1069353), (57, 356451), (131, 155097), (171, 118817), (393, 51699), (907, 22401), (1179, 17233), (2489, 8163), (2721, 7467)]