51102009

素因数分解:

$3^4\times 7^1\times {\mathrm{90127}}^1$

素因数の和:90146

約数の個数: 20

約数和(自身を含む): 87243904

約数和(自身を除く): 36141895

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 90127, 270381, 630889, 811143, 1892667, 2433429, 5678001, 7300287, 17034003, 51102009]

約数ペア:

[(1, 51102009), (3, 17034003), (7, 7300287), (9, 5678001), (21, 2433429), (27, 1892667), (63, 811143), (81, 630889), (189, 270381), (567, 90127)]