2788667

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 16

約数和(自身を含む): 3354624

約数和(自身を除く): 565957

約数列:

[1, 7, 31, 71, 181, 217, 497, 1267, 2201, 5611, 12851, 15407, 39277, 89957, 398381, 2788667]

約数ペア:

[(1, 2788667), (7, 398381), (31, 89957), (71, 39277), (181, 15407), (217, 12851), (497, 5611), (1267, 2201)]