20884721

素因数分解:

${\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 32

約数和(自身を含む): 26562816

約数和(自身を除く): 5678095

約数列:

[1, 11, 13, 17, 71, 121, 143, 187, 221, 781, 923, 1207, 1331, 1573, 2057, 2431, 8591, 10153, 13277, 15691, 17303, 22627, 26741, 94501, 111683, 146047, 172601, 294151, 1228513, 1606517, 1898611, 20884721]

約数ペア:

[(1, 20884721), (11, 1898611), (13, 1606517), (17, 1228513), (71, 294151), (121, 172601), (143, 146047), (187, 111683), (221, 94501), (781, 26741), (923, 22627), (1207, 17303), (1331, 15691), (1573, 13277), (2057, 10153), (2431, 8591)]