1998000513

素因数分解:

$3^4\times {\mathrm{2549}}^1\times {\mathrm{9677}}^1$

素因数の和:12238

約数の個数: 20

約数和(自身を含む): 2986146900

約数和(自身を除く): 988146387

約数列:

[1, 3, 9, 27, 81, 2549, 7647, 9677, 22941, 29031, 68823, 87093, 206469, 261279, 783837, 24666673, 74000019, 222000057, 666000171, 1998000513]

約数ペア:

[(1, 1998000513), (3, 666000171), (9, 222000057), (27, 74000019), (81, 24666673), (2549, 783837), (7647, 261279), (9677, 206469), (22941, 87093), (29031, 68823)]