20087081707

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{145009}}^1$

素因数の和:145291

約数の個数: 24

約数和(自身を含む): 25590204720

約数和(自身を除く): 5503123013

約数列:

[1, 7, 11, 49, 77, 257, 539, 1799, 2827, 12593, 19789, 138523, 145009, 1015063, 1595099, 7105441, 11165693, 37267313, 78159851, 260871191, 409940443, 1826098337, 2869583101, 20087081707]

約数ペア:

[(1, 20087081707), (7, 2869583101), (11, 1826098337), (49, 409940443), (77, 260871191), (257, 78159851), (539, 37267313), (1799, 11165693), (2827, 7105441), (12593, 1595099), (19789, 1015063), (138523, 145009)]