20886957

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8501}}^1$

素因数の和:8530

約数の個数: 32

約数和(自身を含む): 38088960

約数和(自身を除く): 17202003

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8501, 25503, 59507, 76509, 110513, 178521, 229527, 331539, 535563, 773591, 994617, 1606689, 2320773, 2983851, 6962319, 20886957]

約数ペア:

[(1, 20886957), (3, 6962319), (7, 2983851), (9, 2320773), (13, 1606689), (21, 994617), (27, 773591), (39, 535563), (63, 331539), (91, 229527), (117, 178521), (189, 110513), (273, 76509), (351, 59507), (819, 25503), (2457, 8501)]