209006992

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{687523}}^1$

素因数の和:687550

約数の個数: 20

約数和(自身を含む): 426264880

約数和(自身を除く): 217257888

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 687523, 1375046, 2750092, 5500184, 11000368, 13062937, 26125874, 52251748, 104503496, 209006992]

約数ペア:

[(1, 209006992), (2, 104503496), (4, 52251748), (8, 26125874), (16, 13062937), (19, 11000368), (38, 5500184), (76, 2750092), (152, 1375046), (304, 687523)]