19969389

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 12793491

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 947, 1917, 2343, 2841, 7029, 8523, 10417, 21087, 25569, 31251, 67237, 93753, 201711, 281259, 605133, 739607, 1815399, 2218821, 6656463, 19969389]

約数ペア:

[(1, 19969389), (3, 6656463), (9, 2218821), (11, 1815399), (27, 739607), (33, 605133), (71, 281259), (99, 201711), (213, 93753), (297, 67237), (639, 31251), (781, 25569), (947, 21087), (1917, 10417), (2343, 8523), (2841, 7029)]