19840557

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{727}}^1\times {\mathrm{827}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 28933632

約数和(自身を除く): 9093075

約数列:

[1, 3, 11, 33, 727, 827, 2181, 2481, 7997, 9097, 23991, 27291, 601229, 1803687, 6613519, 19840557]

約数ペア:

[(1, 19840557), (3, 6613519), (11, 1803687), (33, 601229), (727, 27291), (827, 23991), (2181, 9097), (2481, 7997)]