19930055

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1918

約数の個数: 16

約数和(自身を含む): 25049088

約数和(自身を除く): 5119033

約数列:

[1, 5, 31, 71, 155, 355, 1811, 2201, 9055, 11005, 56141, 128581, 280705, 642905, 3986011, 19930055]

約数ペア:

[(1, 19930055), (5, 3986011), (31, 642905), (71, 280705), (155, 128581), (355, 56141), (1811, 11005), (2201, 9055)]