21080889555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{7789}}^1$

素因数の和:8204

約数の個数: 64

約数和(自身を含む): 37691136000

約数和(自身を除く): 16610246445

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 349, 517, 705, 1047, 1551, 1745, 2585, 3839, 5235, 7755, 7789, 11517, 16403, 19195, 23367, 38945, 49209, 57585, 82015, 85679, 116835, 180433, 246045, 257037, 366083, 428395, 541299, 902165, 1098249, 1285185, 1830415, 2706495, 2718361, 4026913, 5491245, 8155083, 12080739, 13591805, 20134565, 29901971, 40775415, 60403695, 89705913, 127762967, 149509855, 383288901, 448529565, 638814835, 1405392637, 1916444505, 4216177911, 7026963185, 21080889555]

約数ペア:

[(1, 21080889555), (3, 7026963185), (5, 4216177911), (11, 1916444505), (15, 1405392637), (33, 638814835), (47, 448529565), (55, 383288901), (141, 149509855), (165, 127762967), (235, 89705913), (349, 60403695), (517, 40775415), (705, 29901971), (1047, 20134565), (1551, 13591805), (1745, 12080739), (2585, 8155083), (3839, 5491245), (5235, 4026913), (7755, 2718361), (7789, 2706495), (11517, 1830415), (16403, 1285185), (19195, 1098249), (23367, 902165), (38945, 541299), (49209, 428395), (57585, 366083), (82015, 257037), (85679, 246045), (116835, 180433)]