20242989

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13309}}^1$

素因数の和:13341

約数の個数: 18

約数和(自身を含む): 31664490

約数和(自身を除く): 11421501

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13309, 39927, 119781, 173017, 519051, 1557153, 2249221, 6747663, 20242989]

約数ペア:

[(1, 20242989), (3, 6747663), (9, 2249221), (13, 1557153), (39, 519051), (117, 173017), (169, 119781), (507, 39927), (1521, 13309)]