51991387

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1\times {\mathrm{251}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 60383232

約数和(自身を除く): 8391845

約数列:

[1, 7, 127, 233, 251, 889, 1631, 1757, 29591, 31877, 58483, 207137, 223139, 409381, 7427341, 51991387]

約数ペア:

[(1, 51991387), (7, 7427341), (127, 409381), (233, 223139), (251, 207137), (889, 58483), (1631, 31877), (1757, 29591)]