19909980243

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1\times {\mathrm{2297}}^1$

素因数の和:2788

約数の個数: 48

約数和(自身を含む): 30564686880

約数和(自身を除く): 10654706637

約数列:

[1, 3, 9, 19, 57, 171, 173, 293, 519, 879, 1557, 2297, 2637, 3287, 5567, 6891, 9861, 16701, 20673, 29583, 43643, 50103, 50689, 130929, 152067, 392787, 397381, 456201, 673021, 963091, 1192143, 2019063, 2889273, 3576429, 6057189, 7550239, 8667819, 12787399, 22650717, 38362197, 67952151, 115086591, 116432633, 349297899, 1047893697, 2212220027, 6636660081, 19909980243]

約数ペア:

[(1, 19909980243), (3, 6636660081), (9, 2212220027), (19, 1047893697), (57, 349297899), (171, 116432633), (173, 115086591), (293, 67952151), (519, 38362197), (879, 22650717), (1557, 12787399), (2297, 8667819), (2637, 7550239), (3287, 6057189), (5567, 3576429), (6891, 2889273), (9861, 2019063), (16701, 1192143), (20673, 963091), (29583, 673021), (43643, 456201), (50103, 397381), (50689, 392787), (130929, 152067)]