19641886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{7901}}^1$

素因数の和:8027

約数の個数: 16

約数和(自身を含む): 32429808

約数和(自身を除く): 12787922

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 7901, 15802, 86911, 173822, 892813, 1785626, 9820943, 19641886]

約数ペア:

[(1, 19641886), (2, 9820943), (11, 1785626), (22, 892813), (113, 173822), (226, 86911), (1243, 15802), (2486, 7901)]