21456944

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25303}}^1$

素因数の和:25364

約数の個数: 20

約数和(自身を含む): 42358896

約数和(自身を除く): 20901952

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25303, 50606, 101212, 202424, 404848, 1341059, 2682118, 5364236, 10728472, 21456944]

約数ペア:

[(1, 21456944), (2, 10728472), (4, 5364236), (8, 2682118), (16, 1341059), (53, 404848), (106, 202424), (212, 101212), (424, 50606), (848, 25303)]