21789742

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{2111}}^1$

素因数の和:2523

約数の個数: 16

約数和(自身を含む): 35304192

約数和(自身を除く): 13514450

約数列:

[1, 2, 13, 26, 397, 794, 2111, 4222, 5161, 10322, 27443, 54886, 838067, 1676134, 10894871, 21789742]

約数ペア:

[(1, 21789742), (2, 10894871), (13, 1676134), (26, 838067), (397, 54886), (794, 27443), (2111, 10322), (4222, 5161)]