20508711548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1981901}}^1$

素因数の和:1982117

約数の個数: 24

約数和(自身を含む): 38845279200

約数和(自身を除く): 18336567652

約数列:

[1, 2, 4, 13, 26, 52, 199, 398, 796, 2587, 5174, 10348, 1981901, 3963802, 7927604, 25764713, 51529426, 103058852, 394398299, 788796598, 1577593196, 5127177887, 10254355774, 20508711548]

約数ペア:

[(1, 20508711548), (2, 10254355774), (4, 5127177887), (13, 1577593196), (26, 788796598), (52, 394398299), (199, 103058852), (398, 51529426), (796, 25764713), (2587, 7927604), (5174, 3963802), (10348, 1981901)]