13205871

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2161}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 22035104

約数和(自身を除く): 8829233

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 2161, 6111, 6483, 15127, 19449, 45381, 136143, 209617, 628851, 1467319, 1886553, 4401957, 13205871]

約数ペア:

[(1, 13205871), (3, 4401957), (7, 1886553), (9, 1467319), (21, 628851), (63, 209617), (97, 136143), (291, 45381), (679, 19449), (873, 15127), (2037, 6483), (2161, 6111)]