28305711

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{15493}}^1$

素因数の和:15535

約数の個数: 24

約数和(自身を含む): 48341280

約数和(自身を除く): 20035569

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 15493, 46479, 108451, 139437, 325353, 449297, 976059, 1347891, 3145079, 4043673, 9435237, 28305711]

約数ペア:

[(1, 28305711), (3, 9435237), (7, 4043673), (9, 3145079), (21, 1347891), (29, 976059), (63, 449297), (87, 325353), (203, 139437), (261, 108451), (609, 46479), (1827, 15493)]