81531983

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{19417}}^1$

素因数の和:19466

約数の個数: 16

約数和(自身を含む): 97866720

約数和(自身を除く): 16334737

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 19417, 252421, 330089, 368923, 4291157, 4795999, 6271691, 81531983]

約数ペア:

[(1, 81531983), (13, 6271691), (17, 4795999), (19, 4291157), (221, 368923), (247, 330089), (323, 252421), (4199, 19417)]