21037159

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1123}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 24925824

約数和(自身を除く): 3888665

約数列:

[1, 11, 13, 131, 143, 1123, 1441, 1703, 12353, 14599, 18733, 147113, 160589, 1618243, 1912469, 21037159]

約数ペア:

[(1, 21037159), (11, 1912469), (13, 1618243), (131, 160589), (143, 147113), (1123, 18733), (1441, 14599), (1703, 12353)]