215512687

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1637}}^1$

素因数の和:1723

約数の個数: 24

約数和(自身を含む): 251793360

約数和(自身を除く): 36280673

約数列:

[1, 13, 19, 41, 169, 247, 533, 779, 1637, 3211, 6929, 10127, 21281, 31103, 67117, 131651, 276653, 404339, 872521, 1275223, 5256407, 11342773, 16577899, 215512687]

約数ペア:

[(1, 215512687), (13, 16577899), (19, 11342773), (41, 5256407), (169, 1275223), (247, 872521), (533, 404339), (779, 276653), (1637, 131651), (3211, 67117), (6929, 31103), (10127, 21281)]