81542223

素因数分解:

$3^2\times 7^2\times {\mathrm{184903}}^1$

素因数の和:184923

約数の個数: 18

約数和(自身を含む): 137013864

約数和(自身を除く): 55471641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 184903, 554709, 1294321, 1664127, 3882963, 9060247, 11648889, 27180741, 81542223]

約数ペア:

[(1, 81542223), (3, 27180741), (7, 11648889), (9, 9060247), (21, 3882963), (49, 1664127), (63, 1294321), (147, 554709), (441, 184903)]