28149471

素因数分解:

$3^3\times 7^2\times {\mathrm{21277}}^1$

素因数の和:21300

約数の個数: 24

約数和(自身を含む): 48513840

約数和(自身を除く): 20364369

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21277, 63831, 148939, 191493, 446817, 574479, 1042573, 1340451, 3127719, 4021353, 9383157, 28149471]

約数ペア:

[(1, 28149471), (3, 9383157), (7, 4021353), (9, 3127719), (21, 1340451), (27, 1042573), (49, 574479), (63, 446817), (147, 191493), (189, 148939), (441, 63831), (1323, 21277)]