12697321

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 16445184

約数和(自身を除く): 3747863

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 643, 1519, 2821, 4501, 8359, 19747, 19933, 31507, 58513, 139531, 259129, 409591, 976717, 1813903, 12697321]

約数ペア:

[(1, 12697321), (7, 1813903), (13, 976717), (31, 409591), (49, 259129), (91, 139531), (217, 58513), (403, 31507), (637, 19933), (643, 19747), (1519, 8359), (2821, 4501)]