21057104

素因数分解:

$2^4\times {\mathrm{1021}}^1\times {\mathrm{1289}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 40869780

約数和(自身を除く): 19812676

約数列:

[1, 2, 4, 8, 16, 1021, 1289, 2042, 2578, 4084, 5156, 8168, 10312, 16336, 20624, 1316069, 2632138, 5264276, 10528552, 21057104]

約数ペア:

[(1, 21057104), (2, 10528552), (4, 5264276), (8, 2632138), (16, 1316069), (1021, 20624), (1289, 16336), (2042, 10312), (2578, 8168), (4084, 5156)]