21921724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3923}}^1$

素因数の和:4065

約数の個数: 24

約数和(自身を含む): 42190848

約数和(自身を除く): 20269124

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3923, 5588, 7846, 15692, 43153, 86306, 172612, 498221, 996442, 1992884, 5480431, 10960862, 21921724]

約数ペア:

[(1, 21921724), (2, 10960862), (4, 5480431), (11, 1992884), (22, 996442), (44, 498221), (127, 172612), (254, 86306), (508, 43153), (1397, 15692), (2794, 7846), (3923, 5588)]