21031772151

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1301}}^1\times {\mathrm{2543}}^1$

素因数の和:4023

約数の個数: 32

約数和(自身を含む): 30420052992

約数和(自身を除く): 9388280841

約数列:

[1, 3, 13, 39, 163, 489, 1301, 2119, 2543, 3903, 6357, 7629, 16913, 33059, 50739, 99177, 212063, 414509, 636189, 1243527, 2756819, 3308443, 5388617, 8270457, 9925329, 16165851, 43009759, 129029277, 539276209, 1617828627, 7010590717, 21031772151]

約数ペア:

[(1, 21031772151), (3, 7010590717), (13, 1617828627), (39, 539276209), (163, 129029277), (489, 43009759), (1301, 16165851), (2119, 9925329), (2543, 8270457), (3903, 5388617), (6357, 3308443), (7629, 2756819), (16913, 1243527), (33059, 636189), (50739, 414509), (99177, 212063)]