247482711

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 416452608

約数和(自身を除く): 168969897

約数列:

[1, 3, 7, 9, 21, 63, 131, 157, 191, 393, 471, 573, 917, 1099, 1179, 1337, 1413, 1719, 2751, 3297, 4011, 8253, 9891, 12033, 20567, 25021, 29987, 61701, 75063, 89961, 143969, 175147, 185103, 209909, 225189, 269883, 431907, 525441, 629727, 1295721, 1576323, 1889181, 3928297, 11784891, 27498079, 35354673, 82494237, 247482711]

約数ペア:

[(1, 247482711), (3, 82494237), (7, 35354673), (9, 27498079), (21, 11784891), (63, 3928297), (131, 1889181), (157, 1576323), (191, 1295721), (393, 629727), (471, 525441), (573, 431907), (917, 269883), (1099, 225189), (1179, 209909), (1337, 185103), (1413, 175147), (1719, 143969), (2751, 89961), (3297, 75063), (4011, 61701), (8253, 29987), (9891, 25021), (12033, 20567)]