21453983

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 24145920

約数和(自身を除く): 2691937

約数列:

[1, 17, 19, 127, 323, 523, 2159, 2413, 8891, 9937, 41021, 66421, 168929, 1129157, 1261999, 21453983]

約数ペア:

[(1, 21453983), (17, 1261999), (19, 1129157), (127, 168929), (323, 66421), (523, 41021), (2159, 9937), (2413, 8891)]