20778844167

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{637603}}^1$

素因数の和:637700

約数の個数: 32

約数和(自身を含む): 33053391360

約数和(自身を除く): 12274547193

約数列:

[1, 3, 9, 17, 27, 51, 71, 153, 213, 459, 639, 1207, 1917, 3621, 10863, 32589, 637603, 1912809, 5738427, 10839251, 17215281, 32517753, 45269813, 97553259, 135809439, 292659777, 407428317, 769586821, 1222284951, 2308760463, 6926281389, 20778844167]

約数ペア:

[(1, 20778844167), (3, 6926281389), (9, 2308760463), (17, 1222284951), (27, 769586821), (51, 407428317), (71, 292659777), (153, 135809439), (213, 97553259), (459, 45269813), (639, 32517753), (1207, 17215281), (1917, 10839251), (3621, 5738427), (10863, 1912809), (32589, 637603)]