21459922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15991}}^1$

素因数の和:16065

約数の個数: 16

約数和(自身を含む): 35694144

約数和(自身を除く): 14234222

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15991, 31982, 175901, 351802, 975451, 1950902, 10729961, 21459922]

約数ペア:

[(1, 21459922), (2, 10729961), (11, 1950902), (22, 975451), (61, 351802), (122, 175901), (671, 31982), (1342, 15991)]