221457548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{21401}}^1$

素因数の和:21617

約数の個数: 24

約数和(自身を含む): 419479200

約数和(自身を除く): 198021652

約数列:

[1, 2, 4, 13, 26, 52, 199, 398, 796, 2587, 5174, 10348, 21401, 42802, 85604, 278213, 556426, 1112852, 4258799, 8517598, 17035196, 55364387, 110728774, 221457548]

約数ペア:

[(1, 221457548), (2, 110728774), (4, 55364387), (13, 17035196), (26, 8517598), (52, 4258799), (199, 1112852), (398, 556426), (796, 278213), (2587, 85604), (5174, 42802), (10348, 21401)]