1999543

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 2598288

約数和(自身を除く): 598745

約数列:

[1, 7, 13, 43, 49, 73, 91, 301, 511, 559, 637, 949, 2107, 3139, 3577, 3913, 6643, 21973, 27391, 40807, 46501, 153811, 285649, 1999543]

約数ペア:

[(1, 1999543), (7, 285649), (13, 153811), (43, 46501), (49, 40807), (73, 27391), (91, 21973), (301, 6643), (511, 3913), (559, 3577), (637, 3139), (949, 2107)]