285398001

素因数分解:

$3^2\times 7^2\times {\mathrm{647161}}^1$

素因数の和:647181

約数の個数: 18

約数和(自身を含む): 479547042

約数和(自身を除く): 194149041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 647161, 1941483, 4530127, 5824449, 13590381, 31710889, 40771143, 95132667, 285398001]

約数ペア:

[(1, 285398001), (3, 95132667), (7, 40771143), (9, 31710889), (21, 13590381), (49, 5824449), (63, 4530127), (147, 1941483), (441, 647161)]