20427745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10837}}^1$

素因数の和:10884

約数の個数: 16

約数和(自身を含む): 27311760

約数和(自身を除く): 6884015

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 10837, 54185, 140881, 314273, 704405, 1571365, 4085549, 20427745]

約数ペア:

[(1, 20427745), (5, 4085549), (13, 1571365), (29, 704405), (65, 314273), (145, 140881), (377, 54185), (1885, 10837)]