19992848

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9839}}^1$

素因数の和:9974

約数の個数: 20

約数和(自身を含む): 39045120

約数和(自身を除く): 19052272

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9839, 19678, 39356, 78712, 157424, 1249553, 2499106, 4998212, 9996424, 19992848]

約数ペア:

[(1, 19992848), (2, 9996424), (4, 4998212), (8, 2499106), (16, 1249553), (127, 157424), (254, 78712), (508, 39356), (1016, 19678), (2032, 9839)]