18991023

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5101}}^1$

素因数の和:5194

約数の個数: 16

約数和(自身を含む): 27183456

約数和(自身を除く): 8192433

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5101, 15303, 86717, 260151, 372373, 1117119, 6330341, 18991023]

約数ペア:

[(1, 18991023), (3, 6330341), (17, 1117119), (51, 372373), (73, 260151), (219, 86717), (1241, 15303), (3723, 5101)]