20355909

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{4871}}^1$

素因数の和:5080

約数の個数: 16

約数和(自身を含む): 31180800

約数和(自身を除く): 10824891

約数列:

[1, 3, 7, 21, 199, 597, 1393, 4179, 4871, 14613, 34097, 102291, 969329, 2907987, 6785303, 20355909]

約数ペア:

[(1, 20355909), (3, 6785303), (7, 2907987), (21, 969329), (199, 102291), (597, 34097), (1393, 14613), (4179, 4871)]