28178001

素因数分解:

$3^2\times {\mathrm{179}}^1\times {\mathrm{17491}}^1$

素因数の和:17676

約数の個数: 12

約数和(自身を含む): 40931280

約数和(自身を除く): 12753279

約数列:

[1, 3, 9, 179, 537, 1611, 17491, 52473, 157419, 3130889, 9392667, 28178001]

約数ペア:

[(1, 28178001), (3, 9392667), (9, 3130889), (179, 157419), (537, 52473), (1611, 17491)]