20045571

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 33266688

約数和(自身を除く): 13221117

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 273, 303, 707, 727, 1313, 2121, 2181, 3939, 5089, 9191, 9451, 15267, 27573, 28353, 66157, 73427, 198471, 220281, 513989, 954551, 1541967, 2863653, 6681857, 20045571]

約数ペア:

[(1, 20045571), (3, 6681857), (7, 2863653), (13, 1541967), (21, 954551), (39, 513989), (91, 220281), (101, 198471), (273, 73427), (303, 66157), (707, 28353), (727, 27573), (1313, 15267), (2121, 9451), (2181, 9191), (3939, 5089)]