20840534

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72869}}^1$

素因数の和:72895

約数の個数: 16

約数和(自身を含む): 36726480

約数和(自身を除く): 15885946

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72869, 145738, 801559, 947297, 1603118, 1894594, 10420267, 20840534]

約数ペア:

[(1, 20840534), (2, 10420267), (11, 1894594), (13, 1603118), (22, 947297), (26, 801559), (143, 145738), (286, 72869)]