218367009

素因数分解:

$3^4\times 7^1\times {\mathrm{385127}}^1$

素因数の和:385146

約数の個数: 20

約数和(自身を含む): 372803904

約数和(自身を除く): 154436895

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 385127, 1155381, 2695889, 3466143, 8087667, 10398429, 24263001, 31195287, 72789003, 218367009]

約数ペア:

[(1, 218367009), (3, 72789003), (7, 31195287), (9, 24263001), (21, 10398429), (27, 8087667), (63, 3466143), (81, 2695889), (189, 1155381), (567, 385127)]