28121079

素因数分解:

$3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{7481}}^1$

素因数の和:7670

約数の個数: 16

約数和(自身を含む): 43096320

約数和(自身を除く): 14975241

約数列:

[1, 3, 7, 21, 179, 537, 1253, 3759, 7481, 22443, 52367, 157101, 1339099, 4017297, 9373693, 28121079]

約数ペア:

[(1, 28121079), (3, 9373693), (7, 4017297), (21, 1339099), (179, 157101), (537, 52367), (1253, 22443), (3759, 7481)]