20177777081

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{2203}}^1\times {\mathrm{16993}}^1$

素因数の和:19221

約数の個数: 24

約数和(自身を含む): 25619066784

約数和(自身を除く): 5441289703

約数列:

[1, 7, 11, 49, 77, 539, 2203, 15421, 16993, 24233, 107947, 118951, 169631, 186923, 832657, 1187417, 1308461, 9159227, 37435579, 262049053, 411791369, 1834343371, 2882539583, 20177777081]

約数ペア:

[(1, 20177777081), (7, 2882539583), (11, 1834343371), (49, 411791369), (77, 262049053), (539, 37435579), (2203, 9159227), (15421, 1308461), (16993, 1187417), (24233, 832657), (107947, 186923), (118951, 169631)]