21045311

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{331}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24987648

約数和(自身を除く): 3942337

約数列:

[1, 7, 31, 217, 293, 331, 2051, 2317, 9083, 10261, 63581, 71827, 96983, 678881, 3006473, 21045311]

約数ペア:

[(1, 21045311), (7, 3006473), (31, 678881), (217, 96983), (293, 71827), (331, 63581), (2051, 10261), (2317, 9083)]