21000875054420

素因数分解:

$2^2\times 5^1\times {\mathrm{337}}^1\times {\mathrm{661}}^1\times {\mathrm{4713853}}^1$

素因数の和:4714860

約数の個数: 48

約数和(自身を含む): 44299630856208

約数和(自身を除く): 23298755801788

約数列:

[1, 2, 4, 5, 10, 20, 337, 661, 674, 1322, 1348, 1685, 2644, 3305, 3370, 6610, 6740, 13220, 222757, 445514, 891028, 1113785, 2227570, 4455140, 4713853, 9427706, 18855412, 23569265, 47138530, 94277060, 1588568461, 3115856833, 3177136922, 6231713666, 6354273844, 7942842305, 12463427332, 15579284165, 15885684610, 31158568330, 31771369220, 62317136660, 1050043752721, 2100087505442, 4200175010884, 5250218763605, 10500437527210, 21000875054420]

約数ペア:

[(1, 21000875054420), (2, 10500437527210), (4, 5250218763605), (5, 4200175010884), (10, 2100087505442), (20, 1050043752721), (337, 62317136660), (661, 31771369220), (674, 31158568330), (1322, 15885684610), (1348, 15579284165), (1685, 12463427332), (2644, 7942842305), (3305, 6354273844), (3370, 6231713666), (6610, 3177136922), (6740, 3115856833), (13220, 1588568461), (222757, 94277060), (445514, 47138530), (891028, 23569265), (1113785, 18855412), (2227570, 9427706), (4455140, 4713853)]