21717551

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 2854609

約数列:

[1, 17, 19, 71, 323, 947, 1207, 1349, 16099, 17993, 22933, 67237, 305881, 1143029, 1277503, 21717551]

約数ペア:

[(1, 21717551), (17, 1277503), (19, 1143029), (71, 305881), (323, 67237), (947, 22933), (1207, 17993), (1349, 16099)]