20028021

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{39503}}^1$

素因数の和:39532

約数の個数: 12

約数和(自身を含む): 28916928

約数和(自身を除く): 8888907

約数列:

[1, 3, 13, 39, 169, 507, 39503, 118509, 513539, 1540617, 6676007, 20028021]

約数ペア:

[(1, 20028021), (3, 6676007), (13, 1540617), (39, 513539), (169, 118509), (507, 39503)]