85211721

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{2689}}^1$

素因数の和:3205

約数の個数: 24

約数和(自身を含む): 140999040

約数和(自身を除く): 55787319

約数列:

[1, 3, 7, 9, 21, 63, 503, 1509, 2689, 3521, 4527, 8067, 10563, 18823, 24201, 31689, 56469, 169407, 1352567, 4057701, 9467969, 12173103, 28403907, 85211721]

約数ペア:

[(1, 85211721), (3, 28403907), (7, 12173103), (9, 9467969), (21, 4057701), (63, 1352567), (503, 169407), (1509, 56469), (2689, 31689), (3521, 24201), (4527, 18823), (8067, 10563)]