19810023

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{727}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 27396096

約数和(自身を除く): 7586073

約数列:

[1, 3, 31, 93, 293, 727, 879, 2181, 9083, 22537, 27249, 67611, 213011, 639033, 6603341, 19810023]

約数ペア:

[(1, 19810023), (3, 6603341), (31, 639033), (93, 213011), (293, 67611), (727, 27249), (879, 22537), (2181, 9083)]