18017605

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2131}}^1$

素因数の和:2244

約数の個数: 16

約数和(自身を含む): 23025600

約数和(自身を除く): 5007995

約数列:

[1, 5, 19, 89, 95, 445, 1691, 2131, 8455, 10655, 40489, 189659, 202445, 948295, 3603521, 18017605]

約数ペア:

[(1, 18017605), (5, 3603521), (19, 948295), (89, 202445), (95, 189659), (445, 40489), (1691, 10655), (2131, 8455)]