28289541

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9833}}^1$

素因数の和:9980

約数の個数: 16

約数和(自身を含む): 43426944

約数和(自身を除く): 15137403

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 9833, 29499, 68831, 206493, 1347121, 4041363, 9429847, 28289541]

約数ペア:

[(1, 28289541), (3, 9429847), (7, 4041363), (21, 1347121), (137, 206493), (411, 68831), (959, 29499), (2877, 9833)]