28291857

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{1321}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 42198240

約数和(自身を除く): 13906383

約数列:

[1, 3, 11, 33, 59, 121, 177, 363, 649, 1321, 1947, 3963, 7139, 14531, 21417, 43593, 77939, 159841, 233817, 479523, 857329, 2571987, 9430619, 28291857]

約数ペア:

[(1, 28291857), (3, 9430619), (11, 2571987), (33, 857329), (59, 479523), (121, 233817), (177, 159841), (363, 77939), (649, 43593), (1321, 21417), (1947, 14531), (3963, 7139)]