19680255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{62477}}^1$

素因数の和:62495

約数の個数: 24

約数和(自身を含む): 38986272

約数和(自身を除く): 19306017

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 62477, 187431, 312385, 437339, 562293, 937155, 1312017, 2186695, 2811465, 3936051, 6560085, 19680255]

約数ペア:

[(1, 19680255), (3, 6560085), (5, 3936051), (7, 2811465), (9, 2186695), (15, 1312017), (21, 937155), (35, 562293), (45, 437339), (63, 312385), (105, 187431), (315, 62477)]