28239669

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{487}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 43392960

約数和(自身を除く): 15153291

約数列:

[1, 3, 9, 17, 51, 153, 379, 487, 1137, 1461, 3411, 4383, 6443, 8279, 19329, 24837, 57987, 74511, 184573, 553719, 1661157, 3137741, 9413223, 28239669]

約数ペア:

[(1, 28239669), (3, 9413223), (9, 3137741), (17, 1661157), (51, 553719), (153, 184573), (379, 74511), (487, 57987), (1137, 24837), (1461, 19329), (3411, 8279), (4383, 6443)]