12821999824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{42177631}}^1$

素因数の和:42177658

約数の個数: 20

約数和(自身を含む): 26150131840

約数和(自身を除く): 13328132016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 42177631, 84355262, 168710524, 337421048, 674842096, 801374989, 1602749978, 3205499956, 6410999912, 12821999824]

約数ペア:

[(1, 12821999824), (2, 6410999912), (4, 3205499956), (8, 1602749978), (16, 801374989), (19, 674842096), (38, 337421048), (76, 168710524), (152, 84355262), (304, 42177631)]