17220489

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 27264384

約数和(自身を除く): 10043895

約数列:

[1, 3, 11, 13, 33, 39, 137, 143, 293, 411, 429, 879, 1507, 1781, 3223, 3809, 4521, 5343, 9669, 11427, 19591, 40141, 41899, 58773, 120423, 125697, 441551, 521833, 1324653, 1565499, 5740163, 17220489]

約数ペア:

[(1, 17220489), (3, 5740163), (11, 1565499), (13, 1324653), (33, 521833), (39, 441551), (137, 125697), (143, 120423), (293, 58773), (411, 41899), (429, 40141), (879, 19591), (1507, 11427), (1781, 9669), (3223, 5343), (3809, 4521)]