21899840

素因数分解:

$2^6\times 5^1\times {\mathrm{68437}}^1$

素因数の和:68454

約数の個数: 28

約数和(自身を含む): 52149756

約数和(自身を除く): 30249916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68437, 136874, 273748, 342185, 547496, 684370, 1094992, 1368740, 2189984, 2737480, 4379968, 5474960, 10949920, 21899840]

約数ペア:

[(1, 21899840), (2, 10949920), (4, 5474960), (5, 4379968), (8, 2737480), (10, 2189984), (16, 1368740), (20, 1094992), (32, 684370), (40, 547496), (64, 342185), (80, 273748), (160, 136874), (320, 68437)]