19115089

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 24081408

約数和(自身を除く): 4966319

約数列:

[1, 7, 17, 29, 119, 191, 203, 493, 841, 1337, 3247, 3451, 5539, 5887, 14297, 22729, 38773, 94163, 100079, 160631, 659141, 1124417, 2730727, 19115089]

約数ペア:

[(1, 19115089), (7, 2730727), (17, 1124417), (29, 659141), (119, 160631), (191, 100079), (203, 94163), (493, 38773), (841, 22729), (1337, 14297), (3247, 5887), (3451, 5539)]