81357471

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{467}}^1\times {\mathrm{1489}}^1$

素因数の和:1975

約数の個数: 24

約数和(自身を含む): 126912240

約数和(自身を除く): 45554769

約数列:

[1, 3, 9, 13, 39, 117, 467, 1401, 1489, 4203, 4467, 6071, 13401, 18213, 19357, 54639, 58071, 174213, 695363, 2086089, 6258267, 9039719, 27119157, 81357471]

約数ペア:

[(1, 81357471), (3, 27119157), (9, 9039719), (13, 6258267), (39, 2086089), (117, 695363), (467, 174213), (1401, 58071), (1489, 54639), (4203, 19357), (4467, 18213), (6071, 13401)]