21519924

素因数分解:

$2^2\times 3^1\times {\mathrm{643}}^1\times {\mathrm{2789}}^1$

素因数の和:3439

約数の個数: 24

約数和(自身を含む): 50309280

約数和(自身を除く): 28789356

約数列:

[1, 2, 3, 4, 6, 12, 643, 1286, 1929, 2572, 2789, 3858, 5578, 7716, 8367, 11156, 16734, 33468, 1793327, 3586654, 5379981, 7173308, 10759962, 21519924]

約数ペア:

[(1, 21519924), (2, 10759962), (3, 7173308), (4, 5379981), (6, 3586654), (12, 1793327), (643, 33468), (1286, 16734), (1929, 11156), (2572, 8367), (2789, 7716), (3858, 5578)]