247996989

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{1447}}^1$

素因数の和:1729

約数の個数: 24

約数和(自身を含む): 363679680

約数和(自身を除く): 115682691

約数列:

[1, 3, 9, 137, 139, 411, 417, 1233, 1251, 1447, 4341, 13023, 19043, 57129, 171387, 198239, 201133, 594717, 603399, 1784151, 1810197, 27555221, 82665663, 247996989]

約数ペア:

[(1, 247996989), (3, 82665663), (9, 27555221), (137, 1810197), (139, 1784151), (411, 603399), (417, 594717), (1233, 201133), (1251, 198239), (1447, 171387), (4341, 57129), (13023, 19043)]