19500741

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12821}}^1$

素因数の和:12853

約数の個数: 18

約数和(自身を含む): 30503538

約数和(自身を除く): 11002797

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12821, 38463, 115389, 166673, 500019, 1500057, 2166749, 6500247, 19500741]

約数ペア:

[(1, 19500741), (3, 6500247), (9, 2166749), (13, 1500057), (39, 500019), (117, 166673), (169, 115389), (507, 38463), (1521, 12821)]