20072181855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{188021}}^1$

素因数の和:188687

約数の個数: 32

約数和(自身を含む): 35089417728

約数和(自身を除く): 15017235873

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 647, 1941, 3235, 7117, 9705, 21351, 35585, 106755, 188021, 564063, 940105, 2068231, 2820315, 6204693, 10341155, 31023465, 121649587, 364948761, 608247935, 1338145457, 1824743805, 4014436371, 6690727285, 20072181855]

約数ペア:

[(1, 20072181855), (3, 6690727285), (5, 4014436371), (11, 1824743805), (15, 1338145457), (33, 608247935), (55, 364948761), (165, 121649587), (647, 31023465), (1941, 10341155), (3235, 6204693), (7117, 2820315), (9705, 2068231), (21351, 940105), (35585, 564063), (106755, 188021)]