208039447

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{7877}}^1$

素因数の和:7916

約数の個数: 20

約数和(自身を含む): 264795336

約数和(自身を除く): 56755889

約数列:

[1, 7, 11, 49, 77, 343, 539, 2401, 3773, 7877, 26411, 55139, 86647, 385973, 606529, 2701811, 4245703, 18912677, 29719921, 208039447]

約数ペア:

[(1, 208039447), (7, 29719921), (11, 18912677), (49, 4245703), (77, 2701811), (343, 606529), (539, 385973), (2401, 86647), (3773, 55139), (7877, 26411)]