21504255

素因数分解:

$3^1\times 5^1\times {\mathrm{683}}^1\times {\mathrm{2099}}^1$

素因数の和:2790

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 12969345

約数列:

[1, 3, 5, 15, 683, 2049, 2099, 3415, 6297, 10245, 10495, 31485, 1433617, 4300851, 7168085, 21504255]

約数ペア:

[(1, 21504255), (3, 7168085), (5, 4300851), (15, 1433617), (683, 31485), (2049, 10495), (2099, 10245), (3415, 6297)]