21020206

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10627}}^1$

素因数の和:10695

約数の個数: 16

約数和(自身を含む): 33669504

約数和(自身を除く): 12649298

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10627, 21254, 244421, 456961, 488842, 913922, 10510103, 21020206]

約数ペア:

[(1, 21020206), (2, 10510103), (23, 913922), (43, 488842), (46, 456961), (86, 244421), (989, 21254), (1978, 10627)]