205870511

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{381949}}^1$

素因数の和:381974

約数の個数: 12

約数和(自身を含む): 261253800

約数和(自身を除く): 55383289

約数列:

[1, 7, 11, 49, 77, 539, 381949, 2673643, 4201439, 18715501, 29410073, 205870511]

約数ペア:

[(1, 205870511), (7, 29410073), (11, 18715501), (49, 4201439), (77, 2673643), (539, 381949)]