21121497

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1237

約数の個数: 24

約数和(自身を含む): 32587776

約数和(自身を除く): 11466279

約数列:

[1, 3, 9, 17, 51, 127, 153, 381, 1087, 1143, 2159, 3261, 6477, 9783, 18479, 19431, 55437, 138049, 166311, 414147, 1242441, 2346833, 7040499, 21121497]

約数ペア:

[(1, 21121497), (3, 7040499), (9, 2346833), (17, 1242441), (51, 414147), (127, 166311), (153, 138049), (381, 55437), (1087, 19431), (1143, 18479), (2159, 9783), (3261, 6477)]