20338087

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 26142480

約数和(自身を除く): 5804393

約数列:

[1, 7, 11, 49, 77, 97, 389, 539, 679, 1067, 2723, 4279, 4753, 7469, 19061, 29953, 37733, 52283, 209671, 264131, 415063, 1848917, 2905441, 20338087]

約数ペア:

[(1, 20338087), (7, 2905441), (11, 1848917), (49, 415063), (77, 264131), (97, 209671), (389, 52283), (539, 37733), (679, 29953), (1067, 19061), (2723, 7469), (4279, 4753)]