217941435

素因数分解:

$3^4\times 5^1\times {\mathrm{538127}}^1$

素因数の和:538144

約数の個数: 20

約数和(自身を含む): 390680928

約数和(自身を除く): 172739493

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 538127, 1614381, 2690635, 4843143, 8071905, 14529429, 24215715, 43588287, 72647145, 217941435]

約数ペア:

[(1, 217941435), (3, 72647145), (5, 43588287), (9, 24215715), (15, 14529429), (27, 8071905), (45, 4843143), (81, 2690635), (135, 1614381), (405, 538127)]