19903983

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 10481169

約数列:

[1, 3, 11, 33, 41, 47, 123, 141, 313, 451, 517, 939, 1353, 1551, 1927, 3443, 5781, 10329, 12833, 14711, 21197, 38499, 44133, 63591, 141163, 161821, 423489, 485463, 603151, 1809453, 6634661, 19903983]

約数ペア:

[(1, 19903983), (3, 6634661), (11, 1809453), (33, 603151), (41, 485463), (47, 423489), (123, 161821), (141, 141163), (313, 63591), (451, 44133), (517, 38499), (939, 21197), (1353, 14711), (1551, 12833), (1927, 10329), (3443, 5781)]