21288976

素因数分解:

$2^4\times {\mathrm{241}}^1\times {\mathrm{5521}}^1$

素因数の和:5770

約数の個数: 20

約数和(自身を含む): 41426044

約数和(自身を除く): 20137068

約数列:

[1, 2, 4, 8, 16, 241, 482, 964, 1928, 3856, 5521, 11042, 22084, 44168, 88336, 1330561, 2661122, 5322244, 10644488, 21288976]

約数ペア:

[(1, 21288976), (2, 10644488), (4, 5322244), (8, 2661122), (16, 1330561), (241, 88336), (482, 44168), (964, 22084), (1928, 11042), (3856, 5521)]