9809965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1031}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 12928896

約数和(自身を除く): 3118931

約数列:

[1, 5, 11, 55, 173, 865, 1031, 1903, 5155, 9515, 11341, 56705, 178363, 891815, 1961993, 9809965]

約数ペア:

[(1, 9809965), (5, 1961993), (11, 891815), (55, 178363), (173, 56705), (865, 11341), (1031, 9515), (1903, 5155)]