21526329

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13879}}^1$

素因数の和:13940

約数の個数: 16

約数和(自身を含む): 31979520

約数和(自身を除く): 10453191

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13879, 41637, 152669, 458007, 652313, 1956939, 7175443, 21526329]

約数ペア:

[(1, 21526329), (3, 7175443), (11, 1956939), (33, 652313), (47, 458007), (141, 152669), (517, 41637), (1551, 13879)]