21048976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101197}}^1$

素因数の和:101218

約数の個数: 20

約数和(自身を含む): 43919932

約数和(自身を除く): 22870956

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101197, 202394, 404788, 809576, 1315561, 1619152, 2631122, 5262244, 10524488, 21048976]

約数ペア:

[(1, 21048976), (2, 10524488), (4, 5262244), (8, 2631122), (13, 1619152), (16, 1315561), (26, 809576), (52, 404788), (104, 202394), (208, 101197)]