20641543

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 23574880

約数和(自身を除く): 2933337

約数列:

[1, 13, 19, 193, 247, 433, 2509, 3667, 5629, 8227, 47671, 83569, 106951, 1086397, 1587811, 20641543]

約数ペア:

[(1, 20641543), (13, 1587811), (19, 1086397), (193, 106951), (247, 83569), (433, 47671), (2509, 8227), (3667, 5629)]