18804205

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{28277}}^1$

素因数の和:28308

約数の個数: 16

約数和(自身を含む): 27146880

約数和(自身を除く): 8342675

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 28277, 141385, 197939, 537263, 989695, 2686315, 3760841, 18804205]

約数ペア:

[(1, 18804205), (5, 3760841), (7, 2686315), (19, 989695), (35, 537263), (95, 197939), (133, 141385), (665, 28277)]