21231507

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2543}}^1$

素因数の和:2591

約数の個数: 24

約数和(自身を含む): 32481792

約数和(自身を除く): 11250285

約数列:

[1, 3, 11, 23, 33, 69, 121, 253, 363, 759, 2543, 2783, 7629, 8349, 27973, 58489, 83919, 175467, 307703, 643379, 923109, 1930137, 7077169, 21231507]

約数ペア:

[(1, 21231507), (3, 7077169), (11, 1930137), (23, 923109), (33, 643379), (69, 307703), (121, 175467), (253, 83919), (363, 58489), (759, 27973), (2543, 8349), (2783, 7629)]