20557101

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{1301}}^1$

素因数の和:1556

約数の個数: 16

約数和(自身を含む): 28748160

約数和(自身を除く): 8191059

約数列:

[1, 3, 23, 69, 229, 687, 1301, 3903, 5267, 15801, 29923, 89769, 297929, 893787, 6852367, 20557101]

約数ペア:

[(1, 20557101), (3, 6852367), (23, 893787), (69, 297929), (229, 89769), (687, 29923), (1301, 15801), (3903, 5267)]