21034851873

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1\times {\mathrm{643}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 34067496960

約数和(自身を除く): 13032645087

約数列:

[1, 3, 7, 19, 21, 57, 133, 163, 399, 489, 503, 643, 1141, 1509, 1929, 3097, 3423, 3521, 4501, 9291, 9557, 10563, 12217, 13503, 21679, 28671, 36651, 65037, 66899, 81989, 85519, 104809, 200697, 245967, 256557, 314427, 323429, 573923, 733663, 970287, 1557791, 1721769, 1991371, 2200989, 2264003, 4673373, 5974113, 6145151, 6792009, 10904537, 13939597, 18435453, 32713611, 41818791, 43016057, 52718927, 129048171, 158156781, 369032489, 1001659613, 1107097467, 3004978839, 7011617291, 21034851873]

約数ペア:

[(1, 21034851873), (3, 7011617291), (7, 3004978839), (19, 1107097467), (21, 1001659613), (57, 369032489), (133, 158156781), (163, 129048171), (399, 52718927), (489, 43016057), (503, 41818791), (643, 32713611), (1141, 18435453), (1509, 13939597), (1929, 10904537), (3097, 6792009), (3423, 6145151), (3521, 5974113), (4501, 4673373), (9291, 2264003), (9557, 2200989), (10563, 1991371), (12217, 1721769), (13503, 1557791), (21679, 970287), (28671, 733663), (36651, 573923), (65037, 323429), (66899, 314427), (81989, 256557), (85519, 245967), (104809, 200697)]