816972471

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{275911}}^1$

素因数の和:275971

約数の個数: 24

約数和(自身を含む): 1377352704

約数和(自身を除く): 560380233

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 275911, 827733, 1931377, 2483199, 5794131, 12967817, 17382393, 38903451, 90774719, 116710353, 272324157, 816972471]

約数ペア:

[(1, 816972471), (3, 272324157), (7, 116710353), (9, 90774719), (21, 38903451), (47, 17382393), (63, 12967817), (141, 5794131), (329, 2483199), (423, 1931377), (987, 827733), (2961, 275911)]