305428239

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{221807}}^1$

素因数の和:221836

約数の個数: 20

約数和(自身を含む): 483097824

約数和(自身を除く): 177669585

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 221807, 665421, 1996263, 3770719, 5988789, 11312157, 17966367, 33936471, 101809413, 305428239]

約数ペア:

[(1, 305428239), (3, 101809413), (9, 33936471), (17, 17966367), (27, 11312157), (51, 5988789), (81, 3770719), (153, 1996263), (459, 665421), (1377, 221807)]