2181879

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{587}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 3669120

約数和(自身を除く): 1487241

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 587, 1239, 1761, 3717, 4109, 5283, 12327, 34633, 36981, 103899, 242431, 311697, 727293, 2181879]

約数ペア:

[(1, 2181879), (3, 727293), (7, 311697), (9, 242431), (21, 103899), (59, 36981), (63, 34633), (177, 12327), (413, 5283), (531, 4109), (587, 3717), (1239, 1761)]