28290873

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 43690752

約数和(自身を除く): 15399879

約数列:

[1, 3, 13, 17, 39, 51, 71, 213, 221, 601, 663, 923, 1207, 1803, 2769, 3621, 7813, 10217, 15691, 23439, 30651, 42671, 47073, 128013, 132821, 398463, 554723, 725407, 1664169, 2176221, 9430291, 28290873]

約数ペア:

[(1, 28290873), (3, 9430291), (13, 2176221), (17, 1664169), (39, 725407), (51, 554723), (71, 398463), (213, 132821), (221, 128013), (601, 47073), (663, 42671), (923, 30651), (1207, 23439), (1803, 15691), (2769, 10217), (3621, 7813)]