1978983

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 3070080

約数和(自身を除く): 1091097

約数列:

[1, 3, 9, 19, 57, 71, 163, 171, 213, 489, 639, 1349, 1467, 3097, 4047, 9291, 11573, 12141, 27873, 34719, 104157, 219887, 659661, 1978983]

約数ペア:

[(1, 1978983), (3, 659661), (9, 219887), (19, 104157), (57, 34719), (71, 27873), (163, 12141), (171, 11573), (213, 9291), (489, 4047), (639, 3097), (1349, 1467)]