21080144

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57283}}^1$

素因数の和:57314

約数の個数: 20

約数和(自身を含む): 42619296

約数和(自身を除く): 21539152

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57283, 114566, 229132, 458264, 916528, 1317509, 2635018, 5270036, 10540072, 21080144]

約数ペア:

[(1, 21080144), (2, 10540072), (4, 5270036), (8, 2635018), (16, 1317509), (23, 916528), (46, 458264), (92, 229132), (184, 114566), (368, 57283)]