209957215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{38917}}^1$

素因数の和:39018

約数の個数: 16

約数和(自身を含む): 274605408

約数和(自身を除く): 64648193

約数列:

[1, 5, 13, 65, 83, 415, 1079, 5395, 38917, 194585, 505921, 2529605, 3230111, 16150555, 41991443, 209957215]

約数ペア:

[(1, 209957215), (5, 41991443), (13, 16150555), (65, 3230111), (83, 2529605), (415, 505921), (1079, 194585), (5395, 38917)]