1999521

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 3070080

約数和(自身を除く): 1070559

約数列:

[1, 3, 9, 29, 47, 87, 141, 163, 261, 423, 489, 1363, 1467, 4089, 4727, 7661, 12267, 14181, 22983, 42543, 68949, 222169, 666507, 1999521]

約数ペア:

[(1, 1999521), (3, 666507), (9, 222169), (29, 68949), (47, 42543), (87, 22983), (141, 14181), (163, 12267), (261, 7661), (423, 4727), (489, 4089), (1363, 1467)]