21026572

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3559}}^1$

素因数の和:3781

約数の個数: 24

約数和(自身を含む): 42264320

約数和(自身を除く): 21237748

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3559, 5908, 7118, 14236, 24913, 49826, 99652, 750949, 1501898, 3003796, 5256643, 10513286, 21026572]

約数ペア:

[(1, 21026572), (2, 10513286), (4, 5256643), (7, 3003796), (14, 1501898), (28, 750949), (211, 99652), (422, 49826), (844, 24913), (1477, 14236), (2954, 7118), (3559, 5908)]