2191189

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 2979200

約数和(自身を除く): 788011

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 199, 847, 1001, 1393, 1573, 2189, 2587, 11011, 15323, 18109, 24079, 28457, 168553, 199199, 313027, 2191189]

約数ペア:

[(1, 2191189), (7, 313027), (11, 199199), (13, 168553), (77, 28457), (91, 24079), (121, 18109), (143, 15323), (199, 11011), (847, 2587), (1001, 2189), (1393, 1573)]