393708007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1721}}^1\times {\mathrm{2971}}^1$

素因数の和:4710

約数の個数: 16

約数和(自身を含む): 491307264

約数和(自身を除く): 97599257

約数列:

[1, 7, 11, 77, 1721, 2971, 12047, 18931, 20797, 32681, 132517, 228767, 5113091, 35791637, 56244001, 393708007]

約数ペア:

[(1, 393708007), (7, 56244001), (11, 35791637), (77, 5113091), (1721, 228767), (2971, 132517), (12047, 32681), (18931, 20797)]