21316084

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 38192000

約数和(自身を除く): 16875916

約数列:

[1, 2, 4, 61, 122, 199, 244, 398, 439, 796, 878, 1756, 12139, 24278, 26779, 48556, 53558, 87361, 107116, 174722, 349444, 5329021, 10658042, 21316084]

約数ペア:

[(1, 21316084), (2, 10658042), (4, 5329021), (61, 349444), (122, 174722), (199, 107116), (244, 87361), (398, 53558), (439, 48556), (796, 26779), (878, 24278), (1756, 12139)]