19307007

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{1567}}^1$

素因数の和:1647

約数の個数: 18

約数和(自身を含む): 28680288

約数和(自身を除く): 9373281

約数列:

[1, 3, 9, 37, 111, 333, 1369, 1567, 4107, 4701, 12321, 14103, 57979, 173937, 521811, 2145223, 6435669, 19307007]

約数ペア:

[(1, 19307007), (3, 6435669), (9, 2145223), (37, 521811), (111, 173937), (333, 57979), (1369, 14103), (1567, 12321), (4107, 4701)]