20804563209

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{229}}^1\times {\mathrm{563}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 29653992000

約数和(自身を除く): 8849428791

約数列:

[1, 3, 19, 57, 149, 229, 361, 447, 563, 687, 1083, 1689, 2831, 4351, 8493, 10697, 13053, 32091, 34121, 53789, 82669, 83887, 102363, 128927, 161367, 203243, 248007, 251661, 386781, 609729, 648299, 1593853, 1944897, 2449613, 4781559, 7348839, 12317681, 19210123, 30283207, 36953043, 46542647, 57630369, 90849621, 139627941, 364992337, 1094977011, 6934854403, 20804563209]

約数ペア:

[(1, 20804563209), (3, 6934854403), (19, 1094977011), (57, 364992337), (149, 139627941), (229, 90849621), (361, 57630369), (447, 46542647), (563, 36953043), (687, 30283207), (1083, 19210123), (1689, 12317681), (2831, 7348839), (4351, 4781559), (8493, 2449613), (10697, 1944897), (13053, 1593853), (32091, 648299), (34121, 609729), (53789, 386781), (82669, 251661), (83887, 248007), (102363, 203243), (128927, 161367)]