20121754795

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{21503}}^1$

素因数の和:21735

約数の個数: 32

約数和(自身を含む): 26057687040

約数和(自身を除く): 5935932245

約数列:

[1, 5, 17, 85, 101, 109, 505, 545, 1717, 1853, 8585, 9265, 11009, 21503, 55045, 107515, 187153, 365551, 935765, 1827755, 2171803, 2343827, 10859015, 11719135, 36920651, 39845059, 184603255, 199225295, 236726527, 1183632635, 4024350959, 20121754795]

約数ペア:

[(1, 20121754795), (5, 4024350959), (17, 1183632635), (85, 236726527), (101, 199225295), (109, 184603255), (505, 39845059), (545, 36920651), (1717, 11719135), (1853, 10859015), (8585, 2343827), (9265, 2171803), (11009, 1827755), (21503, 935765), (55045, 365551), (107515, 187153)]