21046490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110771}}^1$

素因数の和:110797

約数の個数: 16

約数和(自身を含む): 39877920

約数和(自身を除く): 18831430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110771, 221542, 553855, 1107710, 2104649, 4209298, 10523245, 21046490]

約数ペア:

[(1, 21046490), (2, 10523245), (5, 4209298), (10, 2104649), (19, 1107710), (38, 553855), (95, 221542), (190, 110771)]