28080039

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1033}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 43775424

約数和(自身を除く): 15695385

約数列:

[1, 3, 13, 17, 39, 41, 51, 123, 221, 533, 663, 697, 1033, 1599, 2091, 3099, 9061, 13429, 17561, 27183, 40287, 42353, 52683, 127059, 228293, 550589, 684879, 720001, 1651767, 2160003, 9360013, 28080039]

約数ペア:

[(1, 28080039), (3, 9360013), (13, 2160003), (17, 1651767), (39, 720001), (41, 684879), (51, 550589), (123, 228293), (221, 127059), (533, 52683), (663, 42353), (697, 40287), (1033, 27183), (1599, 17561), (2091, 13429), (3099, 9061)]