21000317742

素因数分解:

$2^1\times 3^4\times {\mathrm{129631591}}^1$

素因数の和:129631605

約数の個数: 20

約数和(自身を含む): 47056267896

約数和(自身を除く): 26055950154

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129631591, 259263182, 388894773, 777789546, 1166684319, 2333368638, 3500052957, 7000105914, 10500158871, 21000317742]

約数ペア:

[(1, 21000317742), (2, 10500158871), (3, 7000105914), (6, 3500052957), (9, 2333368638), (18, 1166684319), (27, 777789546), (54, 388894773), (81, 259263182), (162, 129631591)]