21513649251

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2971909}}^1$

素因数の和:2972058

約数の個数: 16

約数和(自身を含む): 30432358400

約数和(自身を除く): 8918709149

約数列:

[1, 3, 19, 57, 127, 381, 2413, 7239, 2971909, 8915727, 56466271, 169398813, 377432443, 1132297329, 7171216417, 21513649251]

約数ペア:

[(1, 21513649251), (3, 7171216417), (19, 1132297329), (57, 377432443), (127, 169398813), (381, 56466271), (2413, 8915727), (7239, 2971909)]