12961557

素因数分解:

$3^2\times 7^1\times {\mathrm{233}}^1\times {\mathrm{883}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 21513024

約数和(自身を除く): 8551467

約数列:

[1, 3, 7, 9, 21, 63, 233, 699, 883, 1631, 2097, 2649, 4893, 6181, 7947, 14679, 18543, 55629, 205739, 617217, 1440173, 1851651, 4320519, 12961557]

約数ペア:

[(1, 12961557), (3, 4320519), (7, 1851651), (9, 1440173), (21, 617217), (63, 205739), (233, 55629), (699, 18543), (883, 14679), (1631, 7947), (2097, 6181), (2649, 4893)]