18949931

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1763

約数の個数: 24

約数和(自身を含む): 25650912

約数和(自身を除く): 6700981

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 1001, 1573, 1721, 11011, 12047, 18931, 22373, 132517, 156611, 208241, 246103, 1457687, 1722721, 2707133, 18949931]

約数ペア:

[(1, 18949931), (7, 2707133), (11, 1722721), (13, 1457687), (77, 246103), (91, 208241), (121, 156611), (143, 132517), (847, 22373), (1001, 18931), (1573, 12047), (1721, 11011)]