19858165

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 24393600

約数和(自身を除く): 4535435

約数列:

[1, 5, 83, 109, 415, 439, 545, 2195, 9047, 36437, 45235, 47851, 182185, 239255, 3971633, 19858165]

約数ペア:

[(1, 19858165), (5, 3971633), (83, 239255), (109, 182185), (415, 47851), (439, 45235), (545, 36437), (2195, 9047)]