20820705

素因数分解:

$3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5011}}^1$

素因数の和:5296

約数の個数: 16

約数和(自身を含む): 33440064

約数和(自身を除く): 12619359

約数列:

[1, 3, 5, 15, 277, 831, 1385, 4155, 5011, 15033, 25055, 75165, 1388047, 4164141, 6940235, 20820705]

約数ペア:

[(1, 20820705), (3, 6940235), (5, 4164141), (15, 1388047), (277, 75165), (831, 25055), (1385, 15033), (4155, 5011)]